0.00
0 читателей, 12 топиков

DCompNtwk Chapter 9 - V.4

1. Which two statements describe factors that influence the layout of a proposal? (Choose two.)

   Proposal layouts are required to use sans serif typefaces.
   ? A specific proposal layout is followed when one is specified in the RFP.
   ? A designer chooses the layout if a written RFP does not specify an outline.
   The software that is used to create the proposal dictates the proposal layouts.
   Proposal layouts are required to use a format that is designed by the network engineer.


2. What two items are typically included in the executive summary of a proposal? (Choose two.)

   ? project scope summary
   high-level implementation plan
   quotes for all needed equipment
   technical requirements for the design
   ? emphasis on the benefits that meet the goals of the customer

3. Which proposal section describes the intended routing protocol, security mechanisms, and addressing for the planned network?

   ? logical design 
   physical design
   executive summary
   implementation plan
   network requirements


4. Which occurrence would indicate a failure of the design phase?

   The incorrect model switches were ordered.
   There is no customer signoff for task completion.
   New requirements are identified after implementation begins.
   ? The new network capacity is inadequate to support required traffic.

5. A network installation team is assigned to replace all core switches in an existing data center. No other upgrades are planned. Which kind of installation is this?

   a new installation
   a fork-lift installation
   ? a phased installation
   a green field installation

6. What service is provided Cisco standard warranty?

   software application maintenance
   ? replacement of defected hardware
   next business day delivery of replacement parts
   access to the Cisco Technical Assistance Center (TAC) 24 hours a day, 7 days a week

7. An upgraded version of the Cisco IOS has been purchased. However, the CD arrived damaged. How will this loss be covered?

a hardware warranty
   ? a software warranty
   the Cisco SMARTnet Service
   an additional service contract

8. A company informs the account manager that the installation of a new edge router at the customer remote branch location cannot be done at the scheduled time because of a large order that the branch office needs to complete. As a result, the end date of the project must be adjusted to accommodate the additional time. What is the action should the account manager take?

   Cancel the order for the new edge router.
   Work with designer to redesign the branch network.
   Instruct the technician to complete the install of the router at on the date in the contract.
   ? Adjust the timeline documentation to show the company how the delay will affect the
   ? project completion date.

9. NetworkingCompany completes the installation of a network upgrade for a retail customer. All of the onsite tests complete successfully and the customer IT staff approves the results of the tests. The manager of the retail store contacts NetworkingCompany to inform the company that the store will not pay for the upgrade until a recently purchased software package is installed and tested on the network. Which two items that are contained in the proposal can the account manager refer to when discussing this issue with the store manager?(Choose two.)

   ? the project scope
   the bill-of-material
   the project timeline
   ? the terms and conditions
   the business goals of the customer
   the evaluation of the current network

10. The operation of a new branch location network is delayed because a VPN cannot be configured and established between the branch location and the main office. It is determined that the router at the main office does not have enough memory and does not have the correct Cisco IOS version image to support the VPN features. To prevent this delay, this problem should have been identified and corrected during which part of the design project?

   the preparation of the business case
   the prioritizing of the technical goals
   ? the characterization of the existing network
   the implementation of the approved design

11.The NetworkingCompany team is tasked to prepare an implementation schedule for a customer. It is determined that the new firewalls and wireless controllers that are specified in the design cannot be delivered and installed within the agreed upon time frame. The NetworkingCompany informs the customer of the problem. What two options can the NetworkingCompany team take to ensure the success of the project? (Choose two.)

   ? plan to add additional staff and resources to shorten the installation time after the new equipment is delivered
   eliminate redundancy in the design to reduce the amount of equipment that is needed
   ? renegotiate a new time frame with the customer to accommodate the delay
   delay the installation of the security devices and controllers until a later time
   redesign the network to use only readily available equipment and software

12. AAA Financial Services Company is performing implementation planning for a core switch upgrade. The company has 200 financial software programmers that work billable hours during the week. They have critical, scheduled money transfer transmissions that occur at hourly intervals every night. There are two, two-hour long IT maintenance windows scheduled for software upgrades, one on Saturday and one on Sunday. The bank advertises online banking as available 24 hours on business days and 21 hours on the weekends. However, a network upgrade that is necessary to replace some switches is expected to take four hours. Because of rack constraints, this time includes three hours to remove the old switches before the new switches can be installed and one hour to test the logical configuration. How should the implementation scheduling be handled

   Defer the software upgrades. Use the Saturday window to perform the hardware installation. Use the Sunday window to perform the logical testing.
   Coordinate and publish a separate four-hour downtime during Friday to perform the complete switch installation and testing process. Use the Saturday and Sunday windows to correct any outage problems after the Friday window.
   Coordinate and publish two, four-hour downtimes incorporating the published Saturday and Sunday windows. Defer any software upgrades until the new network is proven to be working
correctly with the old software. Use the Sunday window as a fallback scheduling period if there re problems necessitating backing out of the Saturday window.
   ? Coordinate and publish an eight-hour downtime incorporating the Saturday window. This ill allow four hours for installation and logical testing, one hour for troubleshooting and decision, and three hours to roll back to the previous configuration if the new switching cannot pass the logical testing. Defer any software upgrades until the new network is proven to be working orrectly with the old software.

13. ncluded in a Bill of Materials (BOM) for a SOHO wired implementation is a Cisco 2811 router, Catalyst 2560 switch, four PCs, three laptops, and a networked printer. Wireless LAN capability will be implemented on this network. Which two equipment types must be added to the BOM to implement this request? (Choose two.)

   DNS server
   LAN switch
   ? wireless NICs
   DHCP server
   ? wireless access points

14. A customer has just taken delivery of a Cisco 2811 router and Catalyst 3560 switch. Included with the purchase is the SMARTnet Service. Which two resources are included with SMARTnet Service? (Choose two.)

   signature file updates
   ? technical support from TAC
   ? maintenance releases for OS
   software application major releases
   software application maintenance and minor releases

15. A Cisco 1841 router has been purchased without an agreement for SMARTnet Service. What two items are guaranteed under the standard warranty? (Choose two.)

   access to TAC
   ? replacement of defective physical media
   advanced replacement of hardware parts
   access to a renewable standard warranty contract 
   ? under normal use, replacement of defective hardware

16. Upon completion of a proposal, a network design team must sell their ideas to two key stakeholders. Who are these two stakeholders? (Choose two.)

? customers
licensing boards
cabling contractors
? internal management
project implementation team

17. What are two important guidelines when creating a slide presentation for a meeting with a customer? (Choose two.)

   Use all capital letters on words and phrases when possible for added emphasis.
   Provide varied background graphics to enhance viewer interest.
   ? Use contrasting colors for background and text to aid visibility.
   Change fonts frequently to denote differences in subject matter. 
   ? Use bulleted text to lead the discussion.

18. In order to finalize a project proposal, an account manager of a
networking company creates the terms and conditions section. What are two clauses that should be included in this section? (Choose two.)

   cost summary
   installation steps
   ? change order procedures
   ? problem resolution process
   maintenance contract quotation

19. Which two items will a systems engineer include in an implementation plan? (Choose two.)

   ? references to design documents
   the business goals of the customer
   diagrams of the existing traffic flows
   ? the steps to install and test the network
   cost of each network device and component

20. Which statement describes a phased installation into an existing network?

   A phased installation generally takes less time and expense than a green-field installation.
   A phased installation is not suitable for large, multi-site network installations or upgrades.
   ? A phased installation requires detailed planning in order to avoid disruption of user services. 
   A phased installation involves building an entire replacement network and migrating users over to it.
  • avatar
  • 0
  • 0

DCompNtwk Chapter 8 - V.4

1. Which mechanism is used to create a floating static route?

   ? administrative distance
   cost
   hop count
   passive interface

2. IPSec operates at which layer of the OSI model?

   application
   ? network
   datalink
   transport

3. Which is true regarding Frame Relay LMI?

   ? There are three LMI types standardized by ANSI, ITU-T, and Cisco.
   Routers at each end of a Frame Relay virtual circuit must always use the same LMI type.
   The LMI type must be manually configured.
   The only function of LMI is to verify the connection between the router and the Frame Relay switch.

4. Which statement identifies the IP address design for subinterfaces that are configured for a Frame Relay network?

   Multipoint configurations require the IP address of each subinterface on each router to be in its own subnet.
   ? Multipoint configurations require IP addresses for each subinterface on each router to be a part of the same subnet.
   Point-to-point configurations require IP addresses for each subinterface on each router to be a part of the same subnet.
   Point-to-point configurations do not require IP addresses on each subinterface on each router.
   Multipoint configurations do not require IP addresses on each subinterface on each router.

5. Which three algorithms can be used to encrypt user data in an IPSec VPN framework? (Choose three.)

   ? 3DES
   ? AES
   Diffie-Hellman
   ? DES
   ESP
   SHA

6. Which flag is set by a Frame Relay switch to inform the receiving station that congestion was experienced?

   BECN
   DE
   ? FECN
   FCS

7. Refer to the exhibit. The complete configuration of a Frame Relay interface on the Chicago router is shown. How does the Chicago router know which DLCI is mapped to the IP address of the remote router?

DE
   CIR
   FECN
   ? Inverse ARP

8. What statement correctly defines the purpose of the split horizon rule?

   marks the route unreachable in a routing update that is sent to other routers
   ? prevents routers from advertising a network through the interface from which the update came
   prevents routers from accepting higher cost routes to networks previously marked as inaccessible before the timer expires
   limits the number of hops a packet can traverse through the network before it should be discarded

9. Which PVC status suggests that the router recognizes the DLCI configured on its interface as being present on the Frame Relay switch, but the PVC associated with the DLCI is not capable of end-to-end communication?

   active
   deleted
   ? inactive
   idle

10. Refer to the exhibit. Which router command is used to associate a Layer 2 address with the corresponding Layer 3 address?

   Miller(config-if)#frame-relay map ip 172.16.150.1 110
   Miller(config-if)#frame-relay map ip 172.16.150.1 112
  ? Miller(config-if)#frame-relay map ip 172.16.150.2 110
   Miller(config-if)#frame-relay map ip 172.16.150.2 112

11. A network administrator issued the command show frame-relay pvc. The response from the router shows the status of a PVC as deleted. What is the reason for this status?

   The DLCI is using the wrong LMI type.
   The DLCI is usable but has little activity.
   The DLCI is programmed in the switch but the circuit is not usable.
   ? The DLCI configured on the CPE device does not match the DLCI.

12. What is one benefit of using a network simulation software package?

? The network design can be tested before it is actually implemented.
   Simulation software packages are quickly updated to support new network technologies and devices.
   Simulated devices have the same features as actual devices, allowing for detection of all potential problems.
   Software packages can simulate all possible network traffic conditions, giving an accurate prediction of network performance.

13. What are two components a network designer considers when planning a VPN? (Choose two.)

   ? encryption algorithm for privacy and security
   ? encapsulation protocol to use when creating the VPN tunnel
   switching technology to optimize VPN WAN throughput
   tunneling technology for guarding against data corruption
   routing protocol on the gateway for optimum performance

14. When identifying VPN requirements for endpoint users, what care must be taken to protect the network when remote users log in from unsecured public locations?

   Ensure that the user has VPN client software that allows access to all internal resources.
   Ensure that the VPN user traffic does not slow down internally sourced traffic on the network.
   Ensure that there are no obstacles to hamper the users from accessing all internal resources.
   ? Ensure that remote users can only access network resources that are appropriate to their job function. 

15. Which two components are key elements when implementing a VPN? (Choose two.)

   concentration
   ? encryption
   prioritization
   compression
   ? encapsulation

16. What tool can help ease the configuration of VPN servers on routers?

   ? Cisco SDM
   PIX Firewall
   Cisco VPN Concentrator
   Cisco Adaptive Security Appliances

17. What is used to identify the path to the next frame-relay switch in a Frame Relay network?

   CIR
   ? DLCI
   FECN
   BECN

18. Which two statements are true regarding VPN security? (Choose two.)

   Users may only establish a VPN connection from secure locations and never from public areas.
   Users that connect to a network through a VPN do not have to log in to resources on the network.
   ? Users that connect to a network through a VPN are are considered trusted users on the network.
   ? Users may establish a VPN connection from unsecure locations such as airports and hotel lobbies.
   Users that connect to a network through a VPN should have access to all the resources on the network.

19. Refer to the exhibit. What is placed in the address field of a frame that will travel from the Orlando office to the DC office?

   MAC address of the Orlando router
   MAC address of the DC router
   192.168.1.25
   192.168.1.26
   ? DLCI 100
   DLCI 200

20. Two directly connected routers are able to ping each other through the Serial 0/0/0 interfaces. A network administrator changes the encapsulation on one router to PPP, and the other is left at the default value. What statement would appear in the output of the show interfaces command issued on one of the routers?

   Serial 0/0/0 is up, line protocol is up
   Serial 0/0/0 is down, line protocol is down
   ? Serial 0/0/0 is up, line protocol is down
   Serial 0/0/0 is down, line protocol is up
   Serial 0/0/0 is administratively down, line protocol is down

21. Refer to the exhibit. What statement is true about the configuration shown for R2?

   ? R2 is configured as the Frame Relay switch.
   R2 is configured as the main site in a multipoint Frame Relay WAN prototype.
   R2 is configured as the main site in a point-to-point Frame Relay WAN prototype.
   R2 is configured as a remote site in a multipoint Frame Relay WAN prototype.
   R2 is configured as a remote site in a point-to-point Frame Relay WAN prototype.

22. A company uses serial interfaces on its border router to connect to branch offices through WAN connections. The security policy dictates that the encapsulation should use PPP with authentication protocol CHAP. Which statement is true about the configuration requirement of CHAP?

   ? Both the username and password are case sensitive.
   Neither the username nor the password is case sensitive.
   The username is case sensitive but the password is not case sensitive.
   The password is case sensitive but the username is not case sensitive.

23. Which two statements about split tunnels are true? (Choose two.)

   Local LAN printing will use the VPN tunnel.
   The traffic load on the VPN server is increased.
   ? Traffic to the corporate network will be encrypted.
   There is a reduced security risk to the corporate network.
   All traffic travels across the VPN tunnel from client to server.
   Traffic to public web sites and general Internet navigation is not encrypted.

24. An IP address has been assigned to the S0/0/0 interface of a new Cisco router. The administrator wishes to quickly test basic connectivity with the serial interface of an adjoining Cisco router via the use of the default WAN protocol. Which WAN protocol will be used for this test?

   PPP
   Frame Relay
   DSL
   ? HDLC
   ATM

25. Which two statements about split tunnels are true? (Choose two.)

   Local LAN printing will use the VPN tunnel.
   The traffic load on the VPN server is increased.
   ? Traffic to the corporate network will be encrypted.
   There is a reduced security risk to the corporate network.
   All traffic travels across the VPN tunnel from client to server.    
   Traffic to public web sites and general Internet navigation is not encrypted.
  • avatar
  • 0
  • 0

DCompNtwk Final Exam (Part 2)

25. During prototype testing, the network designer performs a test to determine the ability of the network to recover from a link or device failure. Which design goal is validated if the test is a success?

scalability
manageability
? availability
security

26 A network designer has chosen to specify the use of a dedicated firewall appliance at the perimeter o a large network. Why would the designer use a dedicated firewall rather than using the Cisco IOS firewall feature set on the existing router?

Traffic filtering is needed on the internal LAN.
Multiple levels of access to the network are needed.
The DMZ requires packet filtering and port blocking.
? Heavy network traffic will be handled best by using a dedicated device.

27. A company has help desk staff that is not highly trained in VPNs. What two features or technologies must the network designer identify as training needs in order for the help desk to support secure remote access for teleworkers? (Choose two.)

QoS operation
VLAN configuration
? tunneling protocols
IPv6 and IPv4 dual stack
? encryption algorithms
Frame Relay configuration

28. What is a function that is associated with the access layer in a hierarchically designed network?

performs routing and packet manipulation
supplies redundancy and failover protection
provides a high-speed, low-latency backbone
? serves as a network connection point for IP telephony devices

29. A network engineer is prototyping a new IP addressing and summarization strategy for a new network that will be integrated into the existing infrastructure. Which method is appropriate for testing the addressing scheme?

using the production network of the customer
using actual network equipment in a lab
using the Cisco Network Assistant
? using a network simulation tool

30. At the distribution layer of a hierarchical network, what are two advantages of using Layer 3 devices instead of Layer 2 switches? (Choose two.)

provides reliable connectivity to end users
creates fewer IP subnets to configure and manage
reduces the number of redundant links required
? provides connectivity between different VLANs
? enables traffic filtering based on subnet addresses

33. What functionality does NBAR provide to network technicians?

provides data which can be used to create a network diagram
allows for monitoring and managing network devices
? allows for classification and monitoring of network traffic
displays the IOS versions and IP addresses on neighboring devices

34. When implementing a security policy, which two actions should be included as part of the security checklist? (Choose two.)

Disable all logging.
Enable Telnet on TCP port 23.
Use HTTP for web administration.
? Set timeouts and ACLs on VTY lines.
? Shut down any unused ports and interfaces.

35. Refer to the exhibit. The routers are configured with RIPv2 with default configurations. When attempting to communicate with other networks, hosts from 172.16.2.0/24 are experiencing connectivity issues. What could be done to resolve this issue?

Change to a public IP address scheme.
? Disable automatic route summarization.
Change the IP network address on R3 Fa0/0 to 172.16.1.128 /26.
Change the subnet mask on the link between R2 and R3 to 255.255.255.0.

36. Refer to the exhibit. A customer has a problem with connectivity in the network. Based on the IP addressing scheme, what is causing the problem?

The WAN links need IP addresses from a different major network.
The WAN link that connects R1 to R2 overlaps with the R3 LAN.
? The WAN links that connect R1 to R3 and R1 to R2 have incorrect masks.
The R1 LAN is incorrect because subnet zero cannot be used with VLSM.

37. The network designer recommends using RSTP in the design of a new data center. There are multipl redundant Layer 2 switches and links contained in the new design. What is the benefit of using RSTP rather than STP in this situation?

Redundant links are not blocked.
Routing tables converge more quickly.
? Spanning Tree convergence times are reduced.
Fewer redundant links are required to maintain connectivity.

38. What can be broadcast over the wireless network to help a user connect to the network and use wireless services?

? SSID
WEP keys
VLAN parameters
WPA encryption keys
VPN authentication information


41. A network administrator of a middle-sized company is asked to upgrade the routing protocol of the network to support VLSM and route summarization. The current company network contains both Cisc and non-Cisco routers. Which routing protocol should be used for the upgrade?
BGP
RIPv1
RIPv2
EIGRP
42 Which two technologies can provide data integrity in a VPN connection? (Choose two.)
ESP
DES
MD5
DH1
SHA-1
44. Which two statements are true about the enhancements IPv6 has over IPv4? (Choose two.)

IPv6 does not support broadcasts.
? IPv6 uses a simplified header structure.
IPv6 does not require private addresses.
? IPv6 uses fixed length address strings.
IPsec for IPv6 is not compatible with IPsec for IPv4.

45. As part of network monitoring, a network administrator receives an alert that the CPU usage of the core router reaches 90% several times a day. Which protocol is in use to monitor the network performance?

? DNS
SNMP
SMTP
DHCP
TFTP

46. A company plans to establish Frame Relay connections between corporate headquarters and severa branch offices. The network designer recommends using one physical interface on the edge router to support the new Frame Relay connections. The company currently uses RIPv2 for routing and plans no changes to the RIPv2 configuration. What should be done to ensure that each branch office link is a separate subnet and that routing updates are successful between corporate headquarters and the branch offices?

Configure multipoint subinterfaces on the physical interface.
? Configure point-to-point subinterfaces on the physical interface.
Configure a single subinterface to establish multiple PVC connections.
Configure the physical interface to share one DLCI to multiple remote sites and their connections.

52. Refer to the exhibit. A networking company designer is reviewing a diagram of a customer network. What are the two problems that need to be resolved in the topology that is shown? (Choose two.)

? The firewall router and ISP connection represent a single point of failure.
If one of the Layer 3 switches fails, the Cisco Call Manager will be unreachable.
? A power supply failure of the server block switch will cause the entire IP telephony system to fail.
Using Layer 3 switches to interconnect the server block servers to the IP phones introduces too much delay.
The IP phones need to be redundantly connected to the switches to prevent single points of failure at the access layer.
  • avatar
  • 0
  • 0

DCompNtwk Final Exam (Part 1)

1. Refer to the exhibit. Following a test plan, the network systems engineer completes the configuration of an access layer switch and connects three PCs. The engineer attempts to ping from each PC to the other connected PCs to test the configuration. Which statement describes the result of the last step?

Host 1 can ping Host 2.
? Host 1 can ping Host 3.
Host 2 can ping Host 3.
No hosts can ping any other host.

2. Refer to the exhibit. Based on the EIGRP configuration that is shown, what can the field engineer conclude about the EIGRP authentication between RouterA and RouterB?

Authentication will fail because only one key is configured.
Authentication will fail because the key chain names do not match.
? Authentication will succeed and EIGRP updates can be exchanged.
Authentication will fail because the key chain names must match the router names.

3. What is a characteristic of FTP traffic flows?

low-volume traffic
predictable bandwidth usage
? large packet sizes for transfers
low throughput with high response-time requirements

4. If a router is unable to find a suitable IOS to load into RAM, in what mode does the boot process end?

? setup mode
user mode
rommon mode
privileged mode

5. In a converged network, which two types of traffic would be categorized as real-time traffic? (Choose two.)

e-mail
file transfer
web browsing
? videoconferencing
? voice over IP
video on demand

6. A company uses the Frame Relay network to establish a VPN connection between headquarters and the branch office. The company wants to add a backup link in case the Frame Relay connection fails. The backup link will use the business DSL connection through another ISP. How should the router be configured to include the backup link?

? Create a static route with the administrative distance of 1.
Create a floating static route.
Add a new route to the routing protocol configuration.
Create a second default route for the backup path.

7. Refer to the exhibit. What is the spanning-tree role of all the enabled interfaces of SW11?

alternate
backup
? designated
root

8. A WIC-1T module needs to be installed in a Cisco 1841 router that currently has a WIC-2T module in slot 0. What should the network technician do first?

Install the hot-swappable option module.
? Turn off the power to the router before installing the new module.
Remove the WIC-2T module so that the new module can be installed in slot 0.
Shut down all Fast Ethernet ports on the router until the new WIC module installation is complete.
Configure the Cisco IOS software to support an internal trunk link between the two WIC modules.

9. During prototype testing, a LAN switch fails. As the switch re-initializes using the default parameters, a port that has a PC attached transitions to the forwarding state within one second. What protocol would support this feature?

STP
RIP
BGP
VTP
? RSTP

10. What are two accurate descriptors of a DLCI? (Choose two.)

? Frame Relay Layer 2 address
? one DLCI allowed per local loop
locally significant circuit endpoint
signaling standard between DTE and DCE
establishes the data transfer rate through a Frame Relay network

11. A user in a large office calls technical support to complain that a PC has suddenly lost connectivity to the network. The technician asks the caller to talk to nearby users to see if other machines are affected. The caller reports that several immediate neighbors in the same department have a similar problem and that they cannot ping each other. Those who are seated in other departments have connectivity. What should the technician check as the first step in troubleshooting the issue?

the power outlet to the PC that is used by the caller.
the trunks between switches in the wiring closet.
? the status of the departmental workgroup switch in the wiring closet.
the cable that connects the PC of the caller to the network jack.
the cable connection between a PC and a network outlet that is used by a neighbor.

12. A NetworkingCompany engineer is on a support call resolving technical problems for a client network. After the issue is resolved, the engineer also provides a training session for the network support staff. What role is the engineer filling on the networking company team?

? post-sales field engineer
pre-sales engineer
network designer
account manager

13. Refer to the exhibit. The network administrator has used the Cisco Feature Navigator to choose a Cisco IOS image to install on a router. Given the exhibited output of the show version command, which statement is true about the capacity of the router to use this Cisco IOS image?

There is enough DRAM and flash.
There is not enough DRAM and flash.
There is enough DRAM but not enough flash.
There is not enough DRAM but enough flash.

14. Refer to the exhibit. The named ACL “Managers” already exists on the router. What will happen when the network administrator issues the commands that are shown in the exhibit?

The commands overwrite the existing Managers ACL.
The commands are added at the end of the existing Managers ACL.
? The commands are added at the beginning of the existing Managers ACL.
The network administrator receives an error that states that the ACL already exists.

15. Refer to the exhibit. A company with four servers in its server farm has not enabled PVRST on the switches that connect to the server farm segment. What will happen within the network if a primary link goes down?

Access to the the servers will be lost.
Convergence time will be slow and possibly cause applications to time out.
Routing protocols will not send the triggered updates in the event of a failure of the root bridge.
Switches that connect the servers to the network will not be found by other switches in the network.

16. What type of ACL permits outbound traffic, but permits inbound traffic only if it is a response to the traffic that is initiated from inside the network?

Dynamic
Reflexive
Standard
Extended
time-based

17. A network administrator has configured Frame Relay on a serial interface and issued the show interfaces serial command. The output shows that the interface is up and the line protocol is up. However, pings to the remote router across the link fail. What should the next step be to ensure that the IP address of the remote router appears in the Frame Relay map table of the local router?

Configure the router using the no inverse-arp command.
Ensure that the LMI type is correct for the circuit.
? Configure the router using the frame-relay map ip command.
Verify that the remote router has Frame Relay encapsulation enabled.

18. Refer to the exhibit. A pre-sales systems engineer receives a diagram of the exhibited WAN implementation from a customer. EIGRP is the routing protocol that is used on the WAN. None of the parameters for EIGRP metric calculation have been modified in any router configurations. Which statement is true about the routing table on router RM?

There is a single route to the 192.168.24.0/24 LAN using the T1 connection.
There is a single route to the 192.168.24.0/24 LAN using the DSL connection.
? There is a single route to the 192.168.24.0/24 LAN using the Metro Ethernet connection.
EIGRP installs all three routes to the 192.168.24.0/24 LAN and load balances the traffic.

19. Refer to the exhibit. A network administrator is configuring a new router to provide routing between VLANs. The administrator removes the router from the box and connects the Fa0/0 interface to a trunking port on the switch. After the configuration is applied to the router, as shown in the exhibit, the traffic between VLANs fails. What is causing this to occur?

The R1 router needs a routing protocol configured.
? The subinterfaces of the R1 router should have IP addresses applied.
The R1 router needs three additional Fast Ethernet interfaces installed.
The subinterfaces of the R1 router should be configured in the same VLAN.

20. A bank is planning to add a secure, authenticated WAN connection to a rural branch office. The connection must provide bandwidth of up to 10 Mb/s with QoS supporting VoIP. Which WAN connection type should the network designer recommend?

DSL
ISDN
leased line
Frame Relay

21. A company has branch offices at several locations across the country. Which security implementation would provide a cost-effective, secure, and authenticated connection to centralized internal resources that are located at company headquarters, without requiring configuration for individual employees at the branch offices?

leased line with PPP authentication
site-to-site VPN
access control list
? remote-access VPN

22. Refer to the exhibit. An extended ACL has been created to deny traffic from the 192.168.35.0/24 network to the web server with IP address 209.165.201.15. According to Cisco best practices, where should the ACL be applied?

? RTB Fa0/0 inbound
RTC S0/0/1 inbound
RTD Fa0/0 outbound
RTC S0/1/0 outbound

24. Refer to the exhibit. What is an accurate description of the first neighbor that is displayed in the output?

24 port 2950 switch with a non-default native VLAN
24 port 2950 switch that is connected to Fa0/0 on Router1
24 port 2950 switch that is assigned to the administrator-defined VTP domain
24 port 2950 switch with interface GigabitEthernet0/1 that is operating at 1000 Mb/s
  • avatar
  • 0
  • 0

DCompNtwk Chapter 7 - V.4

1. A network engineer has decided to pilot test a portion of a new network design rather than rely on a prototype for proof-of-concept. What are two advantages of pilot testing a design concept?(Choose two.)

   ? The test network experiences real-world network traffic. 
   Users within the enterprise are not affected by the test. 
   ? Network response can be tested in unplanned and unpredictable situations. 
   Unlikely failure conditions can be conveniently tested. 
   Network response can be tested in a highly controlled simulated environment. 

2. While preparing a network test plan document, a network designer records all initial and modified device configurations. Which section of the document typically contains this information?

   ? Appendix 
   Test Procedures 
   Test Description 
   Actual Results and Conclusions 
   Anticipated Results and Success Criteria 

3. Refer to the exhibit. A network designer creates a test plan that includes the specification shown. In which section of the test plan would this specification be found?

   Test Description 
   Test Procedures 
   Design and Topology Diagram 
   Actual Results and Conclusions 
   ? Anticipated Results and Success Criteria 

4. What OSI model Layer 2 security measure can a network engineer implement when prototyping network security?

   a firewall at the network edge 
   ? port security at the access design layer 
   port security at the distribution design layer 
   IP access control lists at the access design layer 

5. How do designers decide which network functions need to be included in the prototype test?

   ? They select the functions that align with the business goals. 
   They select the functions that occur at the network core. 
   They select the functions that do not exist in the existing network. 
   They select the functions from a list of generic network operations. 

6. Refer to the exhibit. During prototype testing of the Cisco network shown, connectivity must be verified. Assuming all connections are working and CDP is enabled on all devices and interfaces, on which device was the command issued?

   ? R1 
   S1 
   R3 
   S2 
   R5 
   S3 

7. Refer to the exhibit. During prototyping, Layer 2 functionality is being tested. Based on the output shown, which two pieces of information can be determined? (Choose two.)

   Switch1 is the root bridge. 
   Interface Fa0/2 on Switch1 has no role in the operation of spanning tree. 
   ? Interface Fa0/2 on Switch1 is the alternate port used to reach the root bridge.
   ? Based on the entries in the "Role" column, it can be concluded that RSTP has been implemented. 
   Interface Fa0/1 on Switch1 is the forwarding port selected for the entire spanning-tree topology. 

8. What Rapid Spanning Tree Protocol (RSTP) state is given to the forwarding port elected for every switched Ethernet LAN segment?

   root 
   backup 
   alternate 
   ? designated 

9. Refer to the exhibit. During prototype testing, verification of VLAN connectivity is being performed. Based on the information shown, what command produced the output?

   show spanning-tree 
   ? show interfaces trunk 
   show cdp neighbors 
   show interfaces 
   show ip interface brief 

10. Switch port Fa0/24 was previously configured as a trunk, but now it is to be used to connect a host to the network. How should the network administrator reconfigure switch port Fa0/24?

   ? Use the switchport mode access command from interface configuration mode. 
   Enter the switchport nonegotiate command from interface configuration mode. 
   Administratively shut down and re-enable the interface to return it to the default. 
   Enter the no switchport mode trunk command in interface configuration mode. 
   Use the switchport access vlan vlan number command from interface configuration mode 
   to remove the port from the trunk and add it to a specific VLAN. 


11. Refer to the exhibit. The redundant paths are of equal bandwidth and EIGRP is the routing protocol in use. Which statement describes the data flow from Server to PC2?

   ? EIGRP load balances across the R3 to R1 and R3 to R2 links. 
   EIGRP load balances across the R1 to Switch3 and R2 to Switch3 paths. 
   EIGRP load balances across the Switch1 to Switch3 and Switch1 to Switch2 paths. 
   EIGRP does not load balance in this topology. 

12. A network designer needs to determine if a proposed IP addressing scheme allows efficient route summarization and provides the appropriate amount of scalability to a design. What is useful for validating a proposed hierarchical IP addressing scheme?

   NBAR 
   a pilot network 
   a route summary 
   ? a network simulator 
   a physical topology ma 

13. In the router command encapsulation dot1q 10, what does the number 10 represent?

   the metric used for a particular route 
   ? the number of the VLAN associated with the encapsulated subinterface 
   the priority number given to the device for the election process 
   the number that must match the Fast Ethernet subinterface number 
   the number used to program the router for unequal cost path load balancing 

14. Refer to the exhibit. The users on the 192.168.10.192 network are not allowed Internet access. The network design calls for an extended ACL to be developed and tested. Where should the ACL be placed for the least effect on other network traffic?

   inbound on Fa0/0 of R3 
   outbound on Fa0/0 of R3 
   ? inbound on Fa0/1 of R3 
   outbound on Fa0/1 of R3 
   inbound on Fa0/1 of R2 
   outbound on S0/0 of R2 

15. Refer to the exhibit. What two measures can be taken to address the areas of weakness circled in the network design? (Choose two.)

   Provide redundant connections to all end users. 
   Add another core switch to increase redundancy. 
   ? Add a switch in the server block connecting the server farm to each core switch. 
   Add an additional switch to the DMZ and direct links from the new switch to the core switches. 
   ? Provide a redundant firewall router connecting to a second ISP, the core switches, and the DMZ. 

16. Why is it important to record baseline measurements of a prototype network?

   Test results show security weaknesses after the baseline tests are run. 
   The baseline is the point at which the network is operating at its fullest potential. 
   Baseline measurements define a point at which network traffic has exceeded the designed capabilities of the network. 
   ? Test results are compared to the baseline to see how the test conditions increase processor use or decrease available bandwidth. 

17.Refer to the exhibit. A network administrator has been given the task of creating a design for a temporary classroom building that is to be set up outside an overcrowded school. In testing the prototype, it is found that the student PC cannot ping the teacher PC. All the switch interfaces are active and connected properly, as is interface Fa0/0 of the router. Given that only the commands shown have bee added to the router configuration, what is the source of the problem?

   ? The IP settings on the student PC are incorrect. 
   The default gateway on the teacher PC is misconfigured. 
   The router Fa0/0 interface has not been configured as a VLAN trunk. 
   The Fa0/0 physical interface has not been configured with an IP address and subnet mask. 
   The administrator forgot to configure a routing protocol to allow the ping packets to reach the teacher PC subnet. 

18. Refer to the exhibit. Why are interfaces Fa0/11, Fa0/23, and Fa0/24 not shown in this switch output?

   ? Interfaces Fa0/11, Fa0/23, and Fa0/24 are trunks. 
   Interfaces Fa0/11, Fa0/23, and Fa0/24 are shutdown. 
   Interfaces Fa0/11, Fa0/23, and Fa0/24 are blocking. 
   Interfaces Fa0/11, Fa0/23, and Fa0/24 failed diagnostics 

19. Refer to the exhibit. A network technician is performing an initial installation of a new switch in the east wing. The technician removes the switch from the box, makes the connections to the network, and adds the configuration shown. The technician notifies the network administrator that the switch has been installed. When the network administrator at the home office attempts to telnet to the switch from host 192.168.0.1, the connection fails. What action should the network technician take?

   Add an enable password to the switch. 
   ? Add a default gateway to the switch configuration. 
   Configure the switch with an IP access list to permit the host connection. 
   Enable the physical interfaces of the switch with the no shutdown command. 

20. Refer to the exhibit. After all the interfaces have stabilized, what is the spanning-tree state of all the enabled interfaces of SW11?

   discarding 
   ? forwarding 
   learning 
   listening
  • avatar
  • 0
  • 0

DCompNtwk Chapter 6 - V.4

A network engineer researched whether there are mechanisms available to help with the transition from an IPv4 addressing structure to IPv6. What three options did the engineer find?(Choose three.)

   ? A protocol translation mechanism allows communication between the IPv4 and IPv6 networks. 
   A packet analyzer determines the addressing structure and converts it to the appropriate IPv4 or IPv6 scheme. 
   New Core devices that support IPV6 must be purchased. 
   A protocol converter changes IPv4 packets into IPv6 packets and vice versa. 
   ? A dual-stack network design allows both IPv4 and IPv6 addressing to be used on all network devices.
   ? Tunneling allows IPv4 packets to be encapsulated so that they can traverse IPv6 networks and vice versa. 

2. When should the command no auto-summary be used?

   with RIP version 1, to enable classless routing 
   with RIP version 2, to enable classless routing 
   with RIP version 1, when discontigous networks exist 
   ? with RIP version 2, when discontigous networks exist 

3. Refer to the exhibit. What must an administrator do on R3 to ensure that update packets are sent with subnet mask information?

   Add the commands: 
R3(config-router)# auto-summary 
R3(config-router)# no version 2 

   ? Add the commands:
? R3(config-router)# version 2
? R3(config-router)# no auto-summary 

   Change the network statement on R3: 
R3(config)# network 10.10.4.0 
   Add the command: 
R3(config)# ip route 0.0.0.0 0.0.0.0 s0/0 


4. What best describes a discontiguous network?

   combines several classfull networking address 
   contains more than one route to a destination 
   implements more than one routing protocol 
   ? separated from the rest of the hierarchical group by another network 

5. Refer to the exhibit. A company has decided to add a new workgroup. If the subnetting scheme for the network uses contiguous blocks of addresses, what subnet is assigned to WGROUP3?

   172.16.3.12/29 
   ? 172.16.3.16/29 
   172.16.3.20/29 
   172.16.3.24/29 
   172.16.3.32/29 

6. A network administrator is using the 10.0.0.0/8 network for the company. The administrator must create a masking scheme to support 750 users at the main office and 620 users at the remote office. What mask should be assigned to the 10.0.0.0/8 network to preserve the most addresses?

   255.255.255.0 
   /19 
   /20 
   ? 255.255.252.0 
   /23 
   /21 

7. What is another format for the IPv6 address 1080:0000:0000:0000:0000:0000:1267:01A2?

   ? 1080::1267:01A2 
   1080:0:0:0:0:1267:01A2 
   1080::0:1267:01A2 
   1080:::::1267.01A2 

8. How many bits make up an IPv6 address?

   32 
   48 
   64 
   ? 128 

9. After activating IPv6 traffic forwarding, configuring IPv6 addresses, and globally configure RIPng, what is the remaining step to activate RIPng?

   Enter the ipv6 router rip name command and then use network statements to activate RIPng on the interfaces. 
   Enter the ipv6 router rip name command and then specify which interfaces run RIPng, which are passive, and which only receive. 
   ? Enter the interface mode for each IPv6 interface and enable RIPng with the ipv6 rip name enable command. 
   Enter the interface mode for each IPv6 interface and enable the multicast group FF02::9, and then activate RIPng globally using the ipv6 router rip name command. 
   Enter the router rip command, and then activate RIPng using the version command. 
   RIPng then automatically runs on all IPv6 interfaces. 

10. Refer to the exhibit. The IT management has determined that the new subnet for WGROUP3 needs to be broken down into four more subnets. What would the subnet mask be for the four newly created subnets within WGROUP3?

   255.255.128.0 
   ? 255.255.192.0 
   255.255.224.0 
   255.255.248.0 
   255.255.252.0 

11. Refer to the exhibit. What is the first usable IP address that can be assigned to the WGROUP3 switch?

   172.16.50.96/27 
   ? 172.16.50.97/27    
   172.16.50.98/27 
   172.16.50.99/27 
   255.255.255.0 

12. Refer to the exhibit. Which set of router commands is required to turn on unequal-cost load sharing so that RTRA selects the path A-B-E and the lowest cost path A-C-E to the Internet?

   ? RTRA(config)# router eigrp 1
? RTRA(config-router)# variance 2 
   RTRA(config)# router eigrp 1 
RTRA(config-router)# variance 1 
   RTRA(config)# router eigrp 1 
RTRA(config-router)# maximum-paths 2 
   RTRA(config)# router eigrp 1 
RTRA(config-router)# maximum-paths 1 

13. Refer to the exhibit. Assuming that the default EIGRP configuration is running on both routers, which statement is true about Router A reaching the 2.2.2.0/24 network?

   ? The no auto-summary command needs to be issued to disable automatic summarization. 
   The network 2.2.2.0 command needs to be issued to ensure that Router A recognizes the 2.2.2.0 network. 
   EIGRP supports VLSM and automatically recognizes the 2.2.2.0 network. 
   EIGRP does not support VLSM; therefore it cannot be used with discontiguous networks. 

14. Refer to the exhibit. The network administrator wants router RTA to send only the summarized route of 10.10.0.0/16 to RTC. Which configuration accomplishes this?

   RTA(config)# interface s0/0 
RTA(config-if)# ip summary-address eigrp 101 10.10.0.0 255.255.0.0 
RTA(config-if)# exit 
RTA(config)# router eigrp 101 
? RTA(config-router)# no auto-summary 
   ? RTA(config)# interface s0/1
? RTA(config-if)# ip summary-address eigrp 101 10.10.0.0 255.255.0.0
? RTA(config-if)# exit
? RTA(config)# router eigrp 101
RTA(config-router)# no auto-summary 
   RTA(config)# interface s0/0 
RTA(config-if)# ip summary-address eigrp 101 10.10.0.0 255.255.0.0 
   RTA(config)# interface s0/1 
RTA(config-if)# ip summary-address eigrp 101 10.10.0.0 255.255.0.0 

15. What is a good design practice when developing a hierarchical addressing scheme?

   Address the nodes in the Access Layer and work toward the Core Layer. 
   Assign addresses to the Core devices before planning the addressing scheme for the server farm. 
   ? Determine where statically configured addressing will be implemented. 
   Determine what percentage of devices are wired and what percentage of devices are wireless. 

16. A network administrator is asked to design a new addressing scheme for a corporate network. Presently, there are 850 users at the head office, 220 users at sales, 425 at manufacturing, and 50 at the research site. Which statement defines the correct VLSM addressing map with minimal waste using the 172.17.0.0/16 network?

   172.17.0.0/20 head office 
172.17.1.0/21 manufacturing 
172.17.1.0/22 sales 
172.17.3.0/26 research 
   172.17.48.0/19 head office 
172.17.16.0/20 manufacturing 
172.17.48.128/25 sales 
172.17.48.0/26 research 
   ? 172.17.0.0/22 head office
? 172.17.4.0/23 manufacturing
? 172.17.5.0/24 sales
? 172.17.6.0/26 research 
   172.17.2.0/22 head office 
172.17.3.0/23 manufacturing 
172.17.4.0/26 sales 
172.17.4.128/25 research 

16. How would the routes for networks 172.16.1.0/24, 172.16.3.0/24, and 172.16.15.0/24 be summarized?

   ? 172.16.0.0/20 
   172.16.0.0/21 
   172.16.0.0/22 
   172.16.0.0/24 

17. What two advantages does CIDR provide to a network? (Choose two.)

   dynamic address assignment 
   automatic route redistribution 
   ? reduced routing update traffic
   ? easier management of summarization 
   automatic summarization at classfull boundaries 

18. Which statement describes MD5 authentication for neighbor authentication?

   ? All passwords are sent in clear text when neighbors first learn about each other. 
   Only the initiating router sends its password using encrypted text when it first discovers a new router.
   All routers send their password using encrypted text only when they first learn of each other. 
   All routers send their password using encrypted text each time they exchange update packets. 


20. Refer to the exhibit. The IT management is adding three VLANs to the wgroup3 switch. The current subnet will be broken down to support 14 hosts for each of the new VLANs. What will the new subnet mask be for these VLANs?

   255.255.255.192 
   ? 255.255.255.240 
   255.255.248.0 
   255.255.255.224 
   255.255.240.0 
   255.255.255.248 

21. An administrator is configuring IPv6 on a router. The steps that have already been completed are:

1. Activate IPv6 traffic forwarding.
2. Configure IPv6 addresses.
3. Globally configure RIPng.
What is the remaining step to complete the activation of RIPng?

   Enter the ipv6 router rip name command and then use network statements to activate RIPng on the interfaces. 
   Enter the ipv6 router rip name command and then specify which interfaces run RIPng, which are passive, and which only receive. 
   Enter the interface mode for each IPv6 interface and enable RIPng with the ipv6 rip name enable command. 
   ? Enter the interface mode for each IPv6 interface and enable the multicast group FF02::9, and then activate RIPng globally using the ipv6 router rip name command. 
   Enter the router rip command, and then activate RIPng using the version command. RIPng then automatically runs on all IPv6 interfaces. 

22. Which range includes all available networks in the 192.168.8.0/21 network?

   192.168.8.0/24 - 192.168.14.0/24 
   ? 192.168.8.0/24 - 192.168.15.0/24 
   192.168.8.0/24 - 192.168.16.0/24 
   192.168.8.0/24 - 192.168.17.0/24 

23. Which two are best practices for creating a new IP addressing scheme for a network? (Choose two.)

   ? Plan and allow for significant growth. 
   Assign addresses to the access layer before any other layer. 
   ? Plan the entire addressing scheme before assigning any addresses. 
   Begin with the access layer network summary addresses and work to the edge. 
   Plan the addressing scheme to meet the current minimum requirement needs. 
   Implement statically assigned addresses to all hosts in the distribution layer first. 

24. Refer to the exhibit. Which subnet will provide sufficient addresses for the Production network with minimal waste?

   172.16.0.192/26 
   ? 172.16.0.192/27 
   172.16.0.224/26 
   172.16.0.160/26 
   172.16.0.144/27 

25. A network designer is implementing a new network for a company. The designer is using all new Cisco equipment and has decided to select a hierarchical routing protocol for the network. The designer wishes to minimize traffic from routing updates but also needs fast routing convergence in the event of a topology change. Also, the existing IP addressing scheme requires that the selected protocol support VLSM. Which routing protocol should be chosen?

   BGP 
   RIP v1 
   RIP v2 
   ? OSPF 
   EIGRP
  • avatar
  • 0
  • 0

Cisco Discovery - Cisco Discovery - DHomesb Module 5 - V.4 .

Q.1 How large are IPv4 addresses?
8 bits   
16 bits  
 ?32 bits   
64 bits   
128 bits


Q.2 Refer to the graphic. A user at the workstation cannot connect to the server. All cables have been tested and are working and all devices have IP addressing. However, the user cannot ping the server. What is causing the problem?
The router interface does not have a default gateway.   
The switch does not have an IP address and default gateway.  
 ?The workstation and server are on different logical networks.   
The workstation does not know the MAC address of the switch.


Q.3 Which part of an IP address identifies a specific device on a network?
first two octets   
third and fourth octets   
network portion   
?host portion   
only the fourth octet


Q.4 Given a host with the IP address 172.32.65.13 and a default subnet mask, to which network does the host belong?
172.32.65.0  
 172.32.65.32   
?172.32.0.0   
172.32.32.0


Q.5 Which default subnet mask provides the most host bits?
? 255.0.0.0   
255.255.0.0  
 255.255.255.0   
255.255.255.252


Q.6 How many bits are available for Class B host IP addresses using a default subnet mask?
4  
 8   
?16   
24


Q.7 How many usable hosts are available given a Class C IP address with the default subnet mask?
?254   
255   
256   
510  
 511  
 512


Q.8 Assuming a default mask, which portion of the IP address 175.124.35.4 represents the host?
175.124   
?35.4   
.4   
124.35.4   
175.124.35


Q.9 Which of the following are private IP addresses? (Choose three.)
?10.1.1.1   
172.32.5.2   
192.167.10.10   
?172.16.4.4   
?192.168.5.5   
224.6.6.6


Q.10 What destination IP address is used in a unicast packet?
? a specific host   
a group of host   
the default gateway   
the network broadcast address


Q.11 What is the destination MAC address in a multicast Ethernet frame?
the MAC address of the sending host  
 the MAC address of the destination hos   
?an address that begins with 01-00-5E in hexadecimal  
 a 48-bit hexadecimal address expressed as FF-FF-FF-FF-FF-FF


Q.12 Yvonne is talking to her friend on the phone. What type of message is this?
broadcast  
 simulcast   
multicast  
 ?unicast


Q.13 What information must be included within a unicast message for it to be delivered on an Ethernet network?
MAC and IP addresses for the default router   
IP address and subnet mask of the default gateway   
MAC and IP addresses that correspond to a destination grou   
?MAC and IP addresses that correspond to a specific destination host


Q.14 A PC obtains its IP address from a DHCP server. If the PC is taken off the network for repair, what happens to the IP address configuration?
The configuration is permanent and nothing changes.   
The address lease is automatically renewed until the PC is returned.   
?The address is returned to the pool for reuse when the lease expires.   
The configuration is held by the server to be reissued when the PC is returned.


Q.15 Which type of server dynamically assigns an IP address to a host?
ARP  
? DHCP  
 DNS  
 RARP

Q.16 Which three statements describe a DHCP Discover message? (Choose three.)
The source MAC address is 48 ones (FF-FF-FF-FF-FF-FF).   
?The destination IP address is 255.255.255.255.   
The message comes from a server offering an IP address.   
?The message comes from a client seeking an IP address.   
?All hosts receive the message, but only a DHCP server replies.   
Only the DHCP server receives the message.


Q.17 Refer to the graphic. A host connects to a Linksys integrated router that is also a DHCP server and receives an IP address from it. Which address does the host need to access the ISP and the Internet?
IP address of the destination host   
public gateway IP address of the ISP   
external IP address of the integrated router that connects to the ISP  
 ?internal IP address of the integrated router that connects to the local network


Q.18 Which statement is true concerning private IP addresses?
ensures that two networks separated by the Internet use unique IP network numbers   
allows internal hosts to communicate with servers across the Internet  
 ?solves the issue of a finite number of available public IP addresses  
 allows for ISPs to be able to quickly determine network location


Q.19 What is one of the purposes of NAT?
filters network traffic based on IP address ranges   
?prevents external users from detecting the IP addresses used on a network   
inspects traffic that might be harmful or used in an attack against the network   
translates IP addresses into easy-to-remember domain names


Q.20 Which two statements describe packets that are sent through a Linksys integrated router using NAT? (Choose two.)
Packets that are sent to any destination need to be translated.   
?Packets that are sent to hosts on the same network need to be translated.  
 Packets that are sent to a destination outside the local network need to be translated.   
Packets that are sent to a destination outside a local network do not need to be translated.  
 ?Packets that are sent between hosts on the same local network do not need to be translated.


Q.21 Refer to the graphic. NAT and DHCP are installed on the Linksys integrated router. Which IP address is most likely to be assigned to the local computer, Host1?
?10.0.0.17  
 128.107.1.2   
192.135.250.0   
209.165.201.1

Cisco Discovery - DHomesb Module 4 - V.4 in english.

Q.1 Which definition describes the term Internet?
a group of PCs connected together on a LAN   
a group of PCs connected together by an ISP  
? a network of networks that connects countries around the world   
a worldwide collection of networks controlled by a single organization


Q.2 What type of connection point is a point of presence (POP)?
between a client and a host  
 between two local networks  
 between a computer and a switch  
? between an ISP and a home-based LAN


Q.3 What is the term for the group of high-speed data links that interconnect ISPs?
Internet LAN   
?ISP backbone   
Internet gateways   
Internet providers   
Internet backbone


Q.4 Which device can act as a router, switch, and wireless access point in one package?
hub  
 bridge   
modem   
repeater   
?ISR


Q.5 What are three characteristics of business class ISP service? (Choose three.)
? fast connections  
 ?extra web space   
free Windows upgrade   
?cheapest cost available to all users   
additional e-mail accounts   
replacement hardware at no cost


Q.6 What is a major characteristic of asymmetric Internet service?
Download speeds and upload speeds are equal.   
Download speeds are slower than upload speeds.   
?Upload speeds and download speeds are different.   
Upload speeds and download speeds are irrelevant.


Q.7 Which three elements are required to successfully connect to the Internet? (Choose three.)
?an IP address   
file sharing enabled   
?a network connection   
server services enabled   
?access to an Internet service provider   
an address obtained directly from the RIR


Q.8 What term describes each router through which a packet travels when moving between source and destination networks?
NOC   
ISP  
 ?hop   
segment


Q.9 What does the tracert command test?
NIC functionality   
the ISP bandwidth   
?the network path to a destination   
the destination application functionality


Q.10 What type of end-user connectivity requires that an ISP have a DSLAM device in their network?
analog technology   
cable modem technology   
?digital subscriber line technology   
wireless technology


Q.11 Why would an ISP require a CMTS device on their network?
? to connect end users using cable technology   
to connect end users using analog technology   
to connect end users using wireless technology   
to connect end users using digital subscriber line technology


Q.12 Refer to the graphic. What type of cabling is shown?
STP  
 UTP   
coax   
?fiber


Q.13 Refer to the graphic. What type of cabling is shown?
STP   
?UTP   
coax  
 fiber


Q.14 Which two places are most appropriate to use UTP cabling? (Choose two.)
between buildings   
?in a home office network   
where EMI is an issue  
 in a cable TV network   
?inside a school building  
 in a manufacturing environment with hundreds of electrical devices


Q.15 What does adherence to cabling standards ensure?
data security   
no loss of signal   
no electromagnetic interference   
?reliable data communications


Q.16 Refer to the graphic. What type of cable is shown?
? crossover   
eight coax channels   
multimode fiber   
single-mode fiber  
 straight-through


Q.17 What connector is used to terminate Ethernet unshielded twisted pair (UTP) cabling?
ST   
BNC  
 RJ-11   
?RJ-45


Q.18 Which two characteristics describe copper patch panels? (Choose two.)
uses RJ-11 jacks   
?uses RJ-45 jacks   
supports only data transmissions   
allows quick rearrangements of network connections  
 forwards transmissions based on MAC addresses


Q.19 What are two advantages of cable management? (Choose two.)
requires no preplanning   
?aids in isolation of cabling problems   
?protects cables from physical damage   
provides compliance with future standards   
provides a short-term solution for cable installation


Q.20 What are two common causes of signal degradation when using UTP cabling? (Choose two.)
installing cables in conduit   
?having improper termination  
losing light over long distances  
installing low quality cable shielding  
 ?using low quality cables or connectors


Q.21 What are three commonly followed standards for constructing and installing cabling? (Choose three.)
?pinouts   
?cable lengths   
connector color   
connector types   
cost per meter (foot)   
tensile strength of plastic insulator.

Cisco Discovery - Cisco Discovery - DRSEnt Module 7 - V.4 .

DRSEnt Chapter 7 Exam Answers


1. Why are Network Control Protocols used in PPP?
to establish and terminate data links
 to provide authentication capabilities to PPP
 to manage network congestion and to allow quality testing of the link
• to allow multiple Layer 3 protocols to operate over the same physical link


2. What is the data transmission rate for the DS0 standard?
44 kb/s
• 64 kb/s
 1.544 Mb/s
 44.736 Mb/s


3. In which two layers of the OSI model are key differences found between a LAN and a WAN. (Choose two.)
• Layer 1
• Layer 2
 Layer 3
 Layer 4
 Layer 6
 Layer 7


4. Which statement is true about the Cisco implementation of the HDLC protocol?
It supports authentication.
 It has a universally compatible frame format.
• It is the default encapsulation for serial interfaces on Cisco routers.
 It does not support multiple protocols across a single link.


5.
Refer to the exhibit. A network administrator has a connectivity problem between the serial interfaces of Merida and Vargas. What is the cause of the problem?
Authentication is required on the serial link.
• The encapsulation is misconfigured.
 The IP addresses are on different subnets.
 The serial interface on Vargas is shutdown.
 The loopback interfaces on both routers are not configured.

6.
Refer to the exhibit. What statement is true about the exhibited output?
LCP is in the process of negotiating a link.
 LCP and NCP are waiting for CHAP authentication to complete.
 LCP negotiation has completed successfully, but NCP negotiation is in progress.
• LCP and NCP negotiation is complete, and the data link service is available to carry packets.

7. Which three statements are true regarding LCP? (Choose three.)
• It is responsible for negotiating link establishment.
 It negotiates options for Layer 3 protocols running over PPP.
 It uses MD5 encryption while negotiating link-establishment parameters.
• It terminates the link upon user request or the expiration of an inactivity timer.
• It can test the link to determine if link quality is sufficient to bring up the link.
 It monitors the link for congestion and dynamically adjusts the acceptable window size.


8. Why are Frame Relay paths referred to as virtual?
Frame Relay PVCs are created and discarded on demand.
 The connections between PVC endpoints act like dialup circuits.
 There are no dedicated circuits to and from the Frame Relay carrier.
• The physical circuits inside the Frame Relay cloud do not contain exclusive links for a specific Frame Relay connection.


9. What best describes the use of a data-link connection identifier (DLCI)?
• an address identifying a virtual circuit
 a logical address identifying the DCE device
 an address identifying a Layer 3 service across a Frame Relay network
 a logical address identifying the physical interface between a router and a Frame Relay switch


10. What two services allow the router to dynamically map data link layer addresses to network layer addresses Frame Relay network? (Choose two.)
ARP
 ICMP
 Proxy ARP
• Inverse ARP
• LMI status messages


11. Which three statements describe functions of the Point-to-Point Protocol with regards to the OSI model?(Choose three.)
operates at all layers of the OSI model
• provides a mechanism to multiplex several network layer protocols
• can be configured on both synchronous and asynchronous serial interfaces
 uses Layer 3 of the OSI model to establish and maintain a session between devices
• uses the data link layer to configure such options as error detection and compression
 uses network control protocols to test and maintain connectivity between devices


12. At what physical location does the responsibility for a WAN connection change from the user to the service provider?
demilitarized zone (DMZ)
• demarcation point
 local loop
 cloud


13. What does a Frame Relay switch use to inform the sender that there is congestion?
FECN
• BECN
 DE
 FCS


14.
Refer to the exhibit. What statement is true about the debug output?
R2 is using PAP instead of CHAP.
• The routers have different CHAP passwords configured.
 The administrator performed a shutdown on the R2 PPP interface during negotiation.
 The Layer 3 protocol negotiation caused the connection failure.

15. Which two statements describe the function of time-division multiplexing? (Choose two.)
• Multiple data streams share one common channel.
 Conversations that require extra bandwidth receive any unused time slices.
 Time slots are utilized on a first-come, first-served basis.
• Time slots go unused if a sender has nothing to transmit.
 Priority can be dedicated to one data source.


16. When customers use credit cards to make purchases at a small business, a modem is heard dialing a telephone number to transfer the transaction data to the central office. What type of WAN serial connection is in use?
leased line
 point-to-point
• circuit switched
 packet switched


17. Which best describes data communications equipment (DCE)?
serves as data source and/or destination
 responsible for negotiating windowing and acknowledgements
 physical devices such as protocol translators and multiplexers
• equipment that forwards data and is responsible for the clocking signal

18. Permanent virtual circuits and switched virtual circuits are both part of which option for WAN connectivity?
leased line
 cell switching
• packet switching
 circuit switching


19. Which field of a frame uses error detection mechanisms to verify that the frame is not damaged intransit?
• FCS
 MTU
 flag
 control
 protocol


20. What occurs in the encapsulation process as a data packet moves from a LAN across a WAN?
• The Layer 2 encapsulation changes to a format that is appropriate for the WAN technology.
 The Layer 3 encapsulation changes to a format that is appropriate for the WAN technology.
 Both Layer 2 and Layer 3 encapsulation change to a technology that is appropriate for the WAN.
 Both Layer 2 and Layer 3 encapsulation remain constant as the data packet travels throughout the network.


21.
Refer to the exhibit. The network administrator is configuring R1 to connect to R2, which is a non-Cisco router. Which encapsulation method will need to be configured for communication to occur?
HDLC
 HSSI
 ISDN
 IPCP
• PPP


22. A company is implementing dialup services for remote workers to connect to the local network. The company uses multiple Layer 3 protocols and requires authentication for security. Which protocol should be used for this remote access?
LMI
• PPP
 HDLC
 Frame Relay


23. Which two options can LCP negotiate? (Choose two.)
• compression
• authentication 
 dynamic flow control
 network layer address for IP
 connection-oriented or connectionless communication methods


24. What statement best describes cell switching?
It uses a dedicated path between endpoints.
 It creates a permanent physical link between two points.
 It uses DLCIs to identify virtual circuits.
• It creates fixed-length packets that traverse virtual circuits.

DCompNtwk Chapter 3

1. It is important to identify the details of network sections and devices that will be affected or involved in a new design. This information is included in which section of the Network Design Requirements Document?

   Project Goal
   ? Project Scope
   Technical Requirements
   Current State of the Network

2. Which two pieces of information does the network designer need to determine if the Cisco IOS of a router requires an upgrade? (Choose two.)

   amount of NVRAM installed
   ? model number of the router
   number of interfaces and installed HWICs
   ? installed Cisco IOS feature set and version
   error statistics for each interface

3. Which three pieces of information need to be considered when selecting the proper Cisco IOS version for an upgrade? (Choose three.)

   processor ID
   interface type
   ? amount of DRAM
   bootstrap version
   ? device make and model
   ? size of system flash memory

4. What are two practices a network technician should follow when installing a new interface card in a router? (Choose two.)

   Be sure the interface card faceplate does not touch the chassis rear panel.
   Do not tighten the captive screws until the router has been powered on and recognizes the card.
   Store the blank faceplate inside the card slot to be used if the card is removed.
   ? Handle the interface card by the edges to avoid static discharge.
   ? Push the interface card into place until the edge connector is seated securely

5. The new serial interface card for the router arrives and the network technician reads that it is hotswappable. What does this mean?

   The card cannot be installed while the router is powered on because static discharge could damage the card.
   The card cannot be installed until the router is powered off and completely cooled down.
   ? The card can be installed while the router is powered on if the router supports this technology.
   The card is a replacement and must be installed in the same slot as the card it is replacing.

6. Refer to the exhibit. A network administrator issues the command shown to gain knowledge about a poorly documented network. Which two pieces of information can the network administrator discover from the command output? (Choose two.)

   ? One connected device has router capability.
   The entire network contains a total of five Cisco devices with CDP enabled.
   None of the directly connected network devices have been configured with an IP address.
   Device EDGE_2811 is connected to port Fast Ethernet 0/0 on device C3750-24_MDF.
   ? Five Cisco devices with CDP enabled are directly connected to device C3750-24_MDF

7. Refer to the exhibit. Which of the three Cisco IOS images shown will load into RAM?

   The router selects an image depending on the value of the configuration register.
   The router selects the third Cisco IOS image because it is the most recent IOS image.
   The router selects the second Cisco IOS image because it is the smallest IOS image.
   ? The router selects an image depending on the boot system command in the configuration.
   The router selects the third Cisco IOS image because it contains the advipservicesk9 image.

8. An administrator wants to download a new Cisco IOS software version to the local router. Which command performs this task?

   ? copy tftp flash
   copy flash run
   copy start tftp
   copy flash tftp
   copy tftp start

9. Refer to the exhibit. The top of the output shows the Cisco Feature Navigator regarding a Cisco IOS image that the administrator wants to install on a router. Below it is the output from the show version command for that router. Which statement is true regarding the capacity of the router to run this Cisco IOS image?

   ? There is not enough DRAM and flash.
   There is enough DRAM and flash.
   There is enough DRAM but not enough flash.
   There is enough flash but not enough DRAM.

10. Which two items are objectives of a WLAN design site survey? (Choose two.)

   ? identify coverage areas
   ? determine primary AP locations
   determine what AP equipment should be purchased
   determine how many users will access the WLAN
   identify the bottleneck of the LAN infrastructure

11. Refer to the exhibit. Which two actions improve the weaknesses of the topology shown, assuming that each access layer segment is in its own subnet? (Choose two.)

   ? Implement redundant links to each server by adding additional NICs.
   Implement a reduntant link from all access layer switches to Admin, Dist, and Server Farm.
   ? Implement a backup firewall with a link to a secondary ISP and implement a redundant link to the DMZ.
   Implement reduntant links from the existing firewall to all access layer switches.
   Implement redundant links from the DMZ to Admin and Dist.

12. A company is beginning to analyze their new Cisco IOS upgrade requirements. What is one of the router components that a network administrator must consider when selecting a new Cisco IOS version?

   processor type
   storage space in NVRAM
   ? interfaces and modules to be supported
   compatibility of the bootstrap version with the new Cisco IOS software

13. An employee at a company notices that the wireless signal strength indicator on his laptop fluctuates from good to low. The network administrator decides to do a site survey of that area. Which three factors need to be included in the survey? (Choose three.)

   type and model number of the WNIC of the laptop
   ? number of users in the area
   ? location of the AP
   list of MAC addresses filtered by the AP
   number of simultaneous applications running on the laptop of the employee
   ? location of walls and filing cabinets in the office

14. The new network design for AnyCompany must include support of voice and video traffic. Before upgrading, the network designer checks whether the existing devices can support the new requirements. Which three items does the designer need to check? (Choose three.)

   number of routers and switches owned by AnyCompany
   routers that will support extra ASICs and WWICs
   ? size of DRAM and flash on each device
   ? routers that will support HWICs and VWICs
   system bootstrap version on each router and switch
   ? modules supported on the loaded Cisco IOS

15. A new Cisco IOS version has been copied into flash from a TFTP server. When a reload is issued to upgrade the Cisco IOS, the router freezes part of the way through the loading process. What could be the problem?

   ? There is enough flash but not enough RAM in the router.
   The new HWIC cards have not been installed yet.
   The TFTP server needs to be present during a reload.
   The new Cisco IOS should have been loaded into NVRAM.
   The new bootstrap version is not compatible with the original version on the router.

16. Refer to the exhibit. A network designer has no documentation and is attempting to create a logical diagram of the network using the output from show commands. What can be determined from the output shown?

   The device with the ID of ISP is a router on the Internet.
   The attached switch is a VTP server in the Toronto domain.
   ? The designer cannot telnet to the attached switch.
   The Cisco router IOS supports enterprise-level voice and video technologies.

17. A production router is reloaded and finishes with a Router> prompt. What three facts can be determined? (Choose three.)

   ? POST occurred normally.
   The boot process was interrupted.
   There is not enough RAM or flash on this router.
   ? A full version of the Cisco IOS was located and loaded.
   ? A configuration file was not located in NVRAM or from a TFTP server.
   The router did not locate the Cisco IOS in flash, so it defaulted to ROM.

18. During a site survey, the network designer noticed that people were accessing the company wireless network from the parking lot. What should be done to stop the wireless signal from radiating out into the parking lot?

   change the channel on the wireless AP
   connect the wireless AP to a firewall
   ? change the type of antenna attached to the AP
   move the wireless AP to a secure VLAN
   move the wireless AP to a port on a Layer 3 switch

19. A network design project includes a review of the existing network. What is the purpose of this phase of the project?

   eliminate the need for a site survey
   shorten the timeframe of the project
   lower the cost of the project by removing redundant links and devices
   determine if the number of applications used within the company can be reduced
   ? To determine what existing network devices require upgrades to meet the new

20. Refer to the exhibit. Based upon the Cisco IOS file naming convention, what is represented by the value ipvoicek9 listed in the IOS filename?

   version
   file format
   ? feature set
   hardware platform

21. Refer to the exhibit. What two items can be determined from the output? (Choose two.)

   ? R2 is a Cisco 2600 device.
   R2 has 22 MB of RAM installed.
   ? The version of the IOS is 12.3.
   Over 8 MB of NVRAM is installed.
   A new 36 MB IOS file can be installed on the device.

22. During a wireless site survey, a consultant is determining the hours of peak usage and the estimated number of users in each location. The consultant is currently in what step of the site survey process?

   the defining of customer requirements
   ? the identification of coverage areas
   the determining of preliminary AP locations
   the measurement of signal strength

23. Refer to the exhibit. The network administrator is attempting to install a new version of the IOS on R2. Based on the exhibited output, what are two possible reasons that the transfer failed?(Choose two.)

   The administrator did not enable TFTP on R2.
   There is not enough flash available to store the new IOS.
   ? Connectivity between R2 and the TFTP server was not verified.
   The copy command was incorrectly entered.
   ? The administrator did not verify that the TFTP server is running. 

24. In which section of the Network Design Requirements document would a network consulting team detail names and IP addresses of important networking components and servers, provide network diagrams and topologies, and define strengths and weaknesses of the network?

   network requirements
   project scope
   overall project goal    
   ? state of the network
  • avatar
  • 0
  • 0