0.00
0 читателей, 5 топиков

DRSEnt Module 10 - V.4 (Part 2)

Q.26 Which command should a network administrator issue to disable default summarization in an EIGRP network?

 Router(config-router)# null 0 route
 Router(config-if)# no ip summary-address
 Router(config-router)# no ip summary-address
 Router(config-if)# no auto-summary
 ? Router(config-router)# no auto-summary

Q.27 Refer to the exhibit. Users on the 172.30.20.0/24 network are unable to access any of the servers located on the 192.168.0.0/23 network. Given the network topology and OSPF configuration, what two problems exist in this network? (Choose two.)

 There is a routing loop occurring between all three routers.
 ? There is a network statement missing.
 ? Network 172.30.20.0 has an incorrect wildcard mask.
 The OSPF Area configuration is incorrect.
 /23 is an invalid subnet mask for the 192.168.0.0 network.

Q.28 Refer to the exhibit. Which IP addressing scheme would be correct for the network?

 H1-172.18.0.10/16
     H2-172.18.0.11/16
     H3-172.18.0.12/16
 ? H1-172.18.0.10/16
     ? H2-172.19.0.10/16
     ? H3-172.18.0.11/16
 H1-172.18.0.10/16
     H2-172.18.0.11/16
     H3-172.19.0.11/16
 H1-172.18.0.10/16
     H2-172.19.0.11/16
     H3-172.19.0.11/16

Q.29 Refer to the exhibit. An administrator is adding a new router to the network. The IP address 192.168.13.6/30 has been assigned to the connecting serial interface on R2. What IP address must the administrator assign to the serial interface of the new router?

 192.168.13.4/30
 ? 192.168.13.5/30
 192.168.13.7/30
 192.168.13.58/30
 192.168.13.61/27
 192.168.13.63/27

Q.30 After comparing a previous baseline to current network statistics, the network engineer has discovered a significant increase in unwarranted traffic to the extranet. Which two steps simplify administration and control the unwanted traffic? (Choose two.)

 ? define an ACL at the distribution layer to isolate packets
 ? add an ACL at the router in the enterprise edge to block the traffic
 deploy a Layer 3 switch to contain broadcasts
 connect remote locations directly to the intranet
 configure all hosts with the same default gateway to eliminate unnecessary broadcasts
 deploy one core ISP router to reduce the delay in path determination

Q.31 Which statement is accurate about the CIR in Frame Relay?

 It is important to purchase a CIR that matches the highest bandwidth requirements of the enterprise.
 The CIR can be no lower than the port speed of the local loop.
 The CIR defines the contracted maximum rate available from the service provider on the Frame Relay circuit
 ? It is possible to burst over the CIR if bandwidth is available.

Q.32 A sales representative is using a wireless connection to make a VoIP call. Which protocol will be used to transport the voice packets?

 ? TCP
 UDP
 PPP
 HDLC

Q.33 A network administrator wants to deny responses to ping requests. Which ACL statement denies ping responses while not affecting other traffic?

 access-list 123 deny tcp any any eq 80
 access-list 123 deny tcp any any eq 20
 access-list 123 deny tcp any any eq 21
 ? access-list 123 deny icmp any any echo-reply
 access-list 101 deny tcp any any established

Q.34 Why would a network administrator want to limit the size of failure domains when designing a network?

 to eliminate the effects of Ethernet collisions
 ? to reduce the impact of a key device or service failure
 to reduce the impact of Internet congestion on critical traffic
 to eliminate the need to block broadcast packets at the edge of the local network

Q.35 What are two benefits of implementing VLANs in an enterprise network? (Choose two.)

 eliminates the need for a Layer 3 device
 ? provides segmentation of broadcast domains
 allows for the propagation of broadcasts from one local network to another
 ? allows for the logical grouping of devices despite physical location
 prevents issues such as broadcast storms by ensuring a loop free environment

Q.36 Which three IP addresses are valid host addresses in the 10.200.0.0/20 network? (Choose three.)

 ? 10.200.11.69
 10.200.16.1
 ? 10.200.0.255
 10.201.0.55
 ? 10.200.15.240
 10.200.30.29

Q.37 Refer to the exhibit. Assuming that the RIPv1 routing protocol is enabled and that all networks are being advertised, which statement is true?

 All packets from H1 that are destined to H2 will arrive at H2.
 ? None of the packets from H1 that are destined to H2 will arrive at H2.
 Approximately half the traffic from H1 that is destined to H2 will reach R3.
 Some of the packets from H1 that are destined to H2 will be sent to the switch that is connected to network 192.168.3.64/26.

Q.38 Refer to the exhibit. Which route will appear in the routing table?

 ? R 10.10.4.0/24 [120/1] via 10.10.10.1, 00:00:12, FastEthernet0/1
 R 10.10.4.0/24 [120/1] via 10.10.20.1, 00:00:12, FastEthernet0/0
 R 10.10.4.0/24 [120/2] via 10.10.20.1, 00:00:12, FastEthernet0/0
 R 10.10.4.0/24 [120/3] via 10.10.30.1, 00:00:12, FastEthernet1/0
 R 10.10.4.0/24 [120/1] via 10.10.30.1, 00:00:12, FastEthernet1/0

Q.39 Refer to the exhibit. Server7 has been added to the server farm network. The hosts can ping Servers 2 and 3 and Server2 and Server3 can ping each other. Server7 cannot ping the other servers connected to the switch. What is the cause of this problem?

 The Fa0/1 port on the switch should be in access mode.
 The switch IP address is not on the same subnet as Server7.
 ? The switch port used for Server7 is not in the same VLAN as Server2 and Server3.
 The Fa0/0 interface of the router has not been configured for subinterfaces to support inter-VLAN routing.

Q.40 What will be the two wildcard masks required in an extended access list statement that blocks traffic to host 192.168.5.45 from the 172.16.240.0/27 network? (Choose two.)

 ? 0.0.0.0
 255.255.240.0
 255.255.255.255
 0.0.31.255
 255.255.255.240
 0.0.0.31

Q.41 If a modem is being used to connect to an ISP, which WAN connection type is being used?

 leased line
 cell switched
 ? circuit switched
 packet switched

Q.42 Refer to the exhibit. A network administrator must manually summarize all IP addresses on the POP router for the ISP. Which one is the correct summary address?

 ? 192.168.0.0/22
 192.168.0.0/23
 192.168.0.0/24
 192.168.0.0/25

Q.43 Refer to the exhibit. OSPF is enabled and the network has completely converged. Which two routers will be designated as DROTHER routers? (Choose two.)

 ? R1
 ? R2
 R3
 R4

Q.44 Refer to the exhibit. What two conclusions can be drawn from the displayed output? (Choose two.)

 A packet with a destination IP address of 172.20.1.14 will exit the router via the Serial 0/1/0n interface.
 The default administrative distance for EIGRP has been changed.
 ? Network 172.20.1.4 can be reached through two possible routes of equal cost.
 ? The addresses on this network were created using VLSM.
 The router connected to Serial 0/1/1 is advertising four separate routes through EIGRP to this router.

Q.45 Refer to the exhibit. What two pieces of information can be gathered from the output of this command? (Choose two.)

 172.16.16.0/20 is a manually summarized route.
 All subnets are being advertised because default summarization was disabled.
 ? The output verifies that EIGRP is advertising only the networks in the same AS.
 The 172.16.1.0/24 network is directly attached to the router that produced this output.
 ? The Null0 interface indicates that this is not an actual path, but a summary for advertising purposes.

Q.46 Refer to the exhibit. What three facts represent the result of DR and BDR elections in this OSPF network? (Choose three.)

 ? RTC will be the DR of 10.5.0.0/30.
 RTD will be the BDR of 10.5.0.0/30.
 ? RTD will be the DR of 10.4.0.0/28.
 RTB will be the BDR of 10.7.0.0/28.
 ? RTB will be the DR of 10.7.0.0/28.
 RTA will be the BDR of 10.4.0.0/28.

Q.47 Refer to the exhibit. Internet access is crucial for the company network shown. Internet access is provided by two ISPs. ISP1 is the primary provider and ISP2 is the backup provider. The network administrator configures BorderR as the border router so that in normal operations, all Internet traffic goes through ISP1. However, if the link to ISP1 fails, then BorderR will automatically forward Internet traffic to ISP2. The administrator configures two default routes:
BorderR(config)# ip route 0.0.0.0 0.0.0.0 192.168.100.1 200
BorderR(config)# ip route 0.0.0.0 0.0.0.0 172.16.1.1
However, when the administrator issued the show ip route command to verify the configuration, only the second default route is in the routing table. Why is the first default route not showing?

 -The first configuration command overwrites the second command.
- The first default route will be installed into the routing table if there is traffic with an IP address that is destined for the 192.168.100.0 network.
? - This is expected because the link to ISP1 is active. If the link to ISP1 goes down, then the first default route will be installed into the routing table.
- The first default route cannot be installed into the routing table unless the administrator manually disables the second default route with the no ip route 0.0.0.0 0.0.0.0 172.16.1.1 command.

Q.48 Refer to the exhibit. If R4 is announcing all shown internal networks as a summary address to the ISP, which summary address will be most specific?

 192.168.1.0/22
 192.168.4.0/21
 192.168.6.0/23
 ? 192.168.8.0/21
 192.168.4.0/22

Q.49 Which two statements are true about the native VLAN on a switch? (Choose two.)

 It requires a special VLAN ID tag.
 It is unable to be changed to a different VLAN.
 Untagged traffic slows the switching process down
 ? The native VLAN defaults to VLAN 1 on Cisco Catalyst switches.
 ? Untagged frames that are received on a trunk become members of this VLAN

Q.50 Refer to the exhibit. A company has recently installed a new switch (S2) into their network.After several minutes, the network administrator notices that the new VLAN information is not being propagated to the new switch. Given the show vtp status command output, what is the possible problem that prevents the information from being received by the new switch?

 ? VTP version mismatch
 VTP domain name mismatch
 VTP revision number mismatch
 Time synchronization problems

Q.51 Refer to the exhibit. All routes in the exhibit are available to a router. Which two routes will be placed into the routing table? (Choose two.)

English CISCO: DRSEnt Module 10 - V.4 (Part 2)


 A
 ? B
 ? C
 D
 E
 F


Q.52 Refer to the exhibit. What is the purpose of the command: RouterA(config)# access-list 1 permit 192.168.16.0 0.0.0.255?

 It identifies traffic on all inside interfaces to be translated and given access to the ISP router.
 It identifies traffic from the fa0/1 interface to be translated and given access to the ISP router.
 It allows traffic from the ISP to reach all of the inside interfaces.
 ? It identifies traffic from the fa0/0 interface to be translated and given access to the ISP router
 It allows traffic from the ISP router to the fa0/1 interface.

Q.53 The headquarters of a corporation uses static routes to connect to three branch offices. What are two advantages of using static routes for the WAN connections? (Choose two.)

 ? Static routes are more secure.
 Static routes converge faster.
 Static routes have higher administrative distances than dynamic routing protocols.
 The metrics of a static route need adjusting only if the bandwidth of the WAN connection changes.
 ? They are more stable and less susceptible to network changes in the interior gateway protocol.

Q.54 What are two ways VLAN memberships can be created in an enterprise network? (Choose two.)

 ? manually configuring the switch ports to be part of a VLAN
 allowing the user to choose a specific VLAN through a GUI menu
 configuring the switch to allow VLAN membership based on NetBIOS association
 implementing an access list that specifies which devices are placed into specific VLANs.
 ? associating MAC addresses to specific VLANs in a VLAN management policy server database
 manually configuring the host devices to be part of a VLAN

Q.55 Which two statements are true about RIPv1 and RIPv2? (Choose two.)

 ? Both versions broadcast updates on port 520.
 Both versions send the subnet mask as part of the update.
 By default, both versions will receive RIPv1 and RIPv2 updates.
 ? Both versions support the features of split horizon and poison reverse
 By default, both versions automatically summarize routes.
 RIPv1 has a higher AD than RIPv2 has.

Q.56 Which bandwidth allocation technique minimizes bandwidth waste by reallocating unused time slices to communicating users?

 VPN
 NCP
 TDM
 STP
 ? STDM

Q.57 Refer to the exhibit. What is represented by the Null0 route for the 128.107.0.0 network?

English CISCO: DRSEnt Module 10 - V.4 (Part 2)

 a child route that is defined
 a parent route that is defined and sourced from a physical interface
? a summary route for advertising purposes, not an actual path
 the result of the no auto-summary command on a router

Q.58 If an authentication protocol is configured for PPP operation, when is the client or user workstation authenticated?

 prior to link establishment
 during the link establishment phase
 ? before the network layer protocol configuration begins
 after the network layer protocol configuration has ended
  • avatar
  • 0
  • 0

DRSEnt Module 10 - V.4 (Part 1)

Q.1 In which VTP mode can a switch create VLANs, ignore VTP messages, and not pass local VLAN information to other VTP domain members?

 Client
 Server
 Pruning
 ? Transparent

Q.2 What are two characteristics of an extended ACL? (Choose two.)

 IP is used to specify TCP traffic only.
 IP is used to specify TCP and UDP traffic only.
 ? IP is used to specify all TCP/IP protocols including TCP, UDP, ICMP and routing protocols.
 Traffic can be filtered on source address only.
 Traffic can be filtered on source and destination address only.
 ? Traffic can be filtered on source and destination address, protocol, and specific port number.

Q.3 Which two statements are true regarding a PPP connection between two Cisco routers? (Choose two.)

 ? LCP tests the quality of the link.
 ? LCP manages compression on the link
 Only a single NCP is allowed between the two routers.
 NCP terminates the link when data exchange is complete.
 With CHAP authentication, the routers exchange plain text passwords.

Q.4 Assuming VLSM is not being used, what impact will adding the command ip route 172.16.64.0 255.255.240.0 serial0/0 have on a router that is already operational in a network?

 All packets with a destination address between 172.16.64.1 and 172.16.80.254 will be forwarded out serial0/0.
 All packets with a destination address between 172.16.64.1 and 172.16.255.254 will be forwarded out serial0/0.
 ? All packets with a destination address between 172.16.64.1 and 172.16.79.254 will be forwarded out serial0/0.
 All packets with a destination address between 172.16.0.1 and 172.16.64.254 will be forwarded out serial0/0.

Q.5 Refer to the exhibit. The network is using OSPF as the routing protocol. A network administrator issues the show ip ospf neighbor command to check the status of operation. Which statement is true?

 RB has the lowest priority value.
 RC and RD have the lowest router IDs on the network.
 ? RA has established adjacencies with all neighbor routers.
 RA and RB cannot form an adjacency because they are stuck in the 2-way state.

Q.6 A sales representative is preparing to send sensitive information to corporate headquarters from a hotel room using the Internet. Prior to the trip, the IT staff made the necessary provisions to allow secure Internet access. What solution was implemented for the sales representative?

 ? VPN
 Frame Relay
 PPP with CHAP authentication
 PPP with PAP authentication

Q.7 Refer to the exhibit. A network administrator noticed that the VLAN configuration changes at SW2 did not propagate to SW3. On the basis of the partial output of the show vtp status command, what is the possible cause of the problem?

 VTP V2 mode is disabled.
 ? SW3 is configured as transparent mode.
 The number of existing VLANs does not match.
 The configuration revision number does not match.

Q.8 Refer to the exhibit. Because of continuing instability of one of the serial links in the OSPF network, a network administrator configures router ASBR as shown. Which two statements will be a result of this configuration? (Choose two.)

 Traffic intended for destinations across unstable serial links will be forwarded by ASBR even when the links are down
 ? A summary route of 192.168.0.0/22 will be advertised to the ISP router.
 Serial links in range 192.168.0.0 255.255.252.0 will be forced into a passive state.
 Networks connected to the unstable serial links will be placed in an unreachable state.
 ? Negative effects of route flapping will be reduced.

Q.9 Which two criteria are used by STP to select a root bridge? (Choose two.)

 memory size
 ? bridge priority
 number of ports
 switch location
 switching speed
 ? base MAC address

Q.10 A company is using a Class B IP addressing scheme and expects to need as many as 150 networks. What is the correct subnet mask to use with the network configuration?

 255.255.0.0
 255.255.240.0
 255.255.254.0
 ? 255.255.255.0
 255.255.255.128
 255.255.255.192 

Q.11 What is the term for the value 2172416 that is highlighted in the output of the show ip eigrp topology command?

 feasible distance of the successor
 reported distance of the successor
 feasible distance of the feasible successor
 ? reported distance of the feasible successor

Q.12 Refer to the exhibit. RIPv2 is configured in the network shown. Hosts in the network have access to all internal networks but do not have Internet access. On which router should the commands, shown in the exhibit, be added to provide Internet access for all hosts in the network?

 R1
 ? R2
 R3
 ISP

Q.13 What do companies gain from the services performed at the enterprise edge?

 faster communication with server farms
 ? stronger security against malicious attacks
 faster communication with Internet destinations
 enhanced performance and reliability through VLANs and redundant trunk links

Q.14 Refer to the exhibit. A network administrator wishes to deny Internet access to all R2 LAN hosts, while allowing these hosts to reach all other devices on the company networks. Where the ACL shown in the exhibit should be placed to meet these requirements?

 R2: Fa0/0 inbound
?R1: S0/1/0 outbound
 R1: S0/0/1 inbound
 R2: S0/0/1 outbound
 R2: Fa0/0 outbound

Q.15 Refer to the exhibit. In what sequence (from first to last) does an OSPF router check the parameters listed when selecting the DR?

?  C, B, A, D
 D, C, B, A
 A, B, C, D
 A, C, B, D
 B, C, A, D

Q.16 What two statements are true regarding EIGRP tables? (Choose two.)

 A feasible successor route can be found in the topology table.
 ? A successor route can only be found in the routing table.
 The topology table shows whether a route is in the passive or active state.
 ? The routing table shows the amount of time elapsed since a router adjacency was formed.
 The neighbor table shows all adjacent Cisco devices.
 Administrative distance is shown as a column in the neighbor table.

Q.17 Refer to the exhibit. Assuming that all three routers are configured with the EIGRP routing protocol and sharing information, what information can be gathered from the show command output?

 Router B has EIGRP adjacencies with both router A and C.
 Router B has a fully converged topology table.
 Router B has not formed an adjacency with router A.
 ? Router B has not formed an adjacency with router C.

Q.18 Which three statements are true about RSTP? (Choose three.)

 ? RSTP can fall back to STP to provide support for legacy equipment.
 RSTP and STP have the same number of port states.
 Like PortFast and UplinkFast, RSTP is a proprietary protocol.
 RSTP takes up to 50 seconds to converge.
 ? RSTP requires a point-to-point, full-duplex connection.
 ? RSTP views all ports that are not discarding as part of an active topology.

Q.19 Refer to the exhibit. A network support technician has been asked to set an IP address on one of the FastEthernet interfaces on a new router. What is causing the interface to reject the address?

 The IP address is already in use.
 ? The technician is using a network address.
 The technician is using the wrong subnet mask for /26
 The technician must enable VLSM on the interface.

Q.20 Refer to the exhibit. A network administrator enters the command ip route 10.10.4.16 255.255.255.248 s0/0/1 into the router. What will be the result of this configuration?

 ? A static route pointing to 10.10.4.16/29 is placed into the routing table.
 A static route to 10.10.4.16/29 is placed into the routing table if interface FastEthernet0/1 goes down.
 A static route pointing to 10.10.4.16/29 is only placed into the routing table if the route to 10.10.4.0 is removed.
 A static route is not placed into the routing table because a RIP route that includes the destination network already exists.

Q.21 Refer to the exhibit. R1 is connected to the Internet through its serial 0/0/0 interface. Hosts on the 192.168.100.0/24 LAN on R1 cannot communicate with hosts on the Internet. What two NAT configuration issues might explain this failure? (Choose two.)

 The ip nat pool command has not been applied correctly.
 The inside interface has not been defined on R1.
 The access list does not include the group of IP addresses that are supported by the inside network.
 ? The ip address that is assigned to the serial 0/0/0 interface is incorrect
 The outside interface has not been defined on R1.

22 Refer to the exhibit. R1 and R2 are connected via serial interfaces. Both interfaces show that there is Layer 2 connectivity between them. The administrator verifies that CDP is operational; however, pings between the two interfaces are unsuccessful. What is the cause of this connectivity problem?

 no set loopback
 ? incorrect subnet mask on R2
 incompatible bandwidth
 incorrect IP address on R1
 incompatible encapsulation

Q.23 Which two statements describe how the information contained in a BPDU is used by a switch? (Choose two.)

 to set the duplex mode of a redundant link
 to activate looped paths throughout the network
 ? to determine the root bridge
 to prevent loops by sharing routing tables between connected switches
 ? to determine which ports are placed in forwarding mode

Q.24 When MD5 authentication is used for OSPF routing protocol authentication, what two facts are known about the key? (Choose two.)

 The key passes between routers in plain text.
 ? The key is used to help generate an encrypted number for authentication.
 The key passes between routers in encrypted form.
 ? The key is never transmitted.
 The key can be captured by using a packet sniffer.

Q.25 Refer to the exhibit. If router RTA fails, which statement is true?

 ? Hosts A and B can reach each other, but cannot reach hosts C and D or the server.
 No host can reach any other host.
 Hosts A, B, C, and D can reach each other, but cannot reach the server.
 All hosts can reach each other.
  • avatar
  • 0
  • 0

DRSEnt Module 9 - V.4

Refer to the exhibit. Based on the output shown, to which IP network should the workstations in the Support department belong?

192.168.1.0
172.16.1.0
? 172.16.3.0
172.16.5.0

Refer to the exhibit. A network administrator is doing proactive network maintenance. The administrator pings 192.168.1.100 and compares the results to the baseline data. Based on the comparison of the two pings, what is one possibility?

There is an ACL applied, making the destination host unreachable.
There is a malfunctioning NIC on the destination host.
The sending host is unable to access the network.
? There are congestion problems on the network.

Refer to the exhibit. Given the output generated by the debug ppp negotiation command, which statement is true?

? The line protocol of the local router is now up.
The username ’Goleta’ is configured locally.
The command ppp authentication pap is configured on both routers.
The local router requested to terminate the session.

What is important to consider while configuring the subinterfaces of a router when implementing inter-VLAN routing?

The subinterface numbers must match the VLAN ID number.
The physical interface must have an IP address configured.
? The IP address of each subinterface must be the default gateway address for each VLAN subnet.
The no shutdown command must be given on each subinterface.

Refer to the exhibit. A lab technician connects two routers together via a serial cable using the default interface configuration values. The interfaces are up; however, the technician is unable to ping between the two devices. What is the most likely problem?

The lab technician used the wrong cable to connect the serial ports.
There is an IP mismatch between the serial ports.
There is an encapsulation mismatch between the serial ports.
? No clock rate has been set on the DCE interface.

Refer to the exhibit. Based on the output shown, why is VTP information unable to p
ropagate the network?

One of the two client mode switches must be reconfigured to Transparent mode.
Each switch must be synchronized to the network time server.
? The VTP domain names are different.
VTP passwords must be set.
The configuration revision numbers are all the same.

The enterprise mail server software recently went through a minor update. A network administrator notices an excessive amount of traffic between a database server and the newly updated mail server, compared to the baseline data. What is the first action the administrator should do to investigate the problem?

Wait to see if the recent update will stabilize after a while.
Redo the baseline data to include the minor upgrade.
? Check the log to see what software components are producing the excess traffic.
Check for viruses and spyware on the database server.

Refer to the exhibit. Users are reporting that they cannot access the Internet. Routers R1 and R2 are configured with RIP version 2 as shown. If R2 receives a packet with a destination address on the Internet, how is the packet routed?

The packet is routed to the ISP router and then to network 10.1.1.0/24.
The packet is routed to the ISP router and then to the Internet.
? The packet is routed to R1 and then forwarded out Fa0/0 on R1.
The packet will not be routed because R2 does not have a valid default route.


Refer to the exhibit. Both routers are configured using RIPv1. Both routers are sending updates about the directly connected routes. R1 can successfully ping the serial interface of R2. The routing table on R1 does not contain any dynamically learned routes from R2, and the routing table on R2 shows no dynamically learned routes from R1. What is the problem?

Subnetting is not supported by RIPv1.
One of the routers needs a clock rate on the serial interface.
The serial link between the two routers is unstable.
? VLSM is not supported by RIPv1.

Refer to the exhibit. Host 192.168.1.14 is unable to download email from 192.168.2.200. After reviewing the output of the show running-config command, what problem is discovered?

Access to the SMTP server is denied.
? The destination host address in an ACL statement is incorrect.
The ACL is applied to the interface in the wrong direction.
The implicit deny any any is blocking all access to email.

An employee called the help desk to report a laptop that could not access a web-based application on the Internet. The help desk technician asked the employee to open a Windows command prompt and type the ipconfig /all command. Which problem-solving technique did the technician choose?

top-down
bottom-up
substitution
? divide-and-conquer

Refer to the exhibit. Based on the network diagram and the output shown, which statement is true?

? The command was entered on router R1.
The command was entered on router R2.
The command was entered on router R3.
The command could have been entered on either R1 or R2.

Refer to the exhibit. An ACL is configured to prevent access by network 192.168.1.0 to network 192.168.2.0, but it is not working properly. What problem is discovered after observing the output of the show running-config command?

The protocol type specified in the ACL should be TCP, not IP.
The source and destination addresses are reversed in the statement.
? The ACL is applied to the wrong interface, but the right direction.
The ACL is applied to the wrong interface and the wrong direction.
The permit ip any any statement allows network 192.168.1.0 access.


Although all networks are reachable, the network administrator notices abnormal routing behavior after configuring OSPF on each router. According to the partial output from the debug ip ospf events command, which statement is true about the contents of the routing table in RA?

? It will show network 172.16.3.0 learned from RB.
It will show network 172.16.3.0 learned from RC.
It will show two equal routes to network 192.168.1.4/30.
It will show two equal routes to network 192.168.1.8/30.

A network at a large building failed, causing a severe disruption in business activities. The problem was eventually detected and resolved by replacing a piece of failed network equipment. Investigation led to the conclusion that a network design problem was the main cause of the disruption. Loss of a single piece of equipment should not have been able to cause such a large problem. What two terms best describe this type of design weakness? (Choose two.)

bottleneck
limited availability
limited scalability
? large failure domain
? single point of failure
limited staff capabilities

Refer to the exhibit. The network administrator is troubleshooting the connectivity issue between RA and RB. According to the partial configuration, what is the cause of the problem?

? password mismatch for PPP authentication
username mismatch for PPP authentication
encapsulation method mismatch for PPP authentication
authentication method mismatch for PPP authentication

Refer to the exhibit. ABC Company is using the 172.16.0.0/18 network. It is standard company practice to use the first 50 addresses for switches and servers and assign the last usable address to the router. The remaining addresses are assigned to the hosts. After assigning the addresses, the network technician tests connectivity from the host above and is not able to ping the router. What could be the problem?

The router was assigned the broadcast address.
The host is not in the same subnet as the switch and router.
? The router interface is in the wrong subnet.
The host was assigned a network address.

Refer to the exhibit. A network administrator is troubleshooting a problem. No users are able to access the 10.10.2.0/24 network, but are able to access all other networks. Assuming R3 is configured correctly and based on the output shown, what is most likely the problem?

There is congestion on the 10.10.2.0 network.
? The EIGRP process number on R2 is incorrect.
The Fa0/0 interface on R2 is shut down.
The Fa0/0 interface on R2 has an incorrect IP address or subnet mask.

Refer to the exhibit. The network administrator correctly configures RTA to perform inter-VLAN routing. Using the show vlan command, the administrator verifies that port Fast Ethernet 0/4 is the first available port in the default VLAN on SW2. The administrator connects RTA to port 0/4 on SW2, but inter-VLAN routing does not work. What could be the possible cause of the problem with the SW2 configuration?

Port 0/4 is not active.
Port 0/4 must be a member of VLAN1.
? Port 0/4 is configured in access mode.
Port 0/4 is configured as a trunk port.

Refer to the exhibit. The network administrator is unable to ping from the console of router R3 to host 10.10.4.63. What is the problem?

RIPv1 does not support VLSM.
Router R2 does not have RIP correctly configured.
Router R3 is missing a network statement for network 10.0.0.0.
? There is an addressing problem on the link between routers R2 and R3.

Refer to the exhibit. A network administrator has implemented subnetting using the network 192.168.25.0 and a /28 mask. Workstation 1 is not able to ping with Workstation 2. What is a possible cause for this lack of communication?

Workstation 1 and Workstation 2 are on the same subnet.
The serial connections are using addresses from the LAN subnets.
All hosts in the network must be in the same subnet to communicate.
? Workstation 1 is not on the same network that the RTA router LAN interface is on.

Which two statements describe when a network administrator should perform a network baseline? (Choose two.)

It should be done monthly as a minimum standard.
? It should be performed when all switch Cisco IOS versions are upgraded.
It should be done when all network printers are upgraded to a new model.
? It should be done when the network is performing at normal activity levels.
It should be done whenever an SLA has been signed with a new service provider.
  • avatar
  • 0
  • 0

DRSEnt Module 6 - V.4

Refer to the exhibit. What statement describes the DR/BDR relationship of the HQ router?

HQ is the DR.
HQ is the BDR.
? HQ is a DROTHER.
HQ is a member of an NBMA network.

Which two features are associated with Frame Relay OSPF point-to-multipoint environments? (Choose two.)

? A DR is not elected.
The OSPF priority value determines the active DR on the Frame Relay link.
? OSPF neighbor routers are statically defined.
The link types are identified as broadcast multiaccess.
The BDR will have a router ID whose value is greater than the DR router ID.


English CISCO: DRSEnt Module 6 - V.4

Refer to the exhibit. How was the OSPF default gateway entry for R2 determined?
Default routes are automatically injected by OSPF into all advertisements.
A static default gateway route is defined in the configuration of R2.
? The default-information originate command is applied on R1.
The ISP defines the gateway of last resort and automatically passes it to R1 and R2.
The ip default-gateway command is applied on R2.

What is always required for OSPF routers to share routing information?

designated routers
a backup designated router
? neighbor adjacencies
an NBMA network topology
links that are configured on the 224.0.0.0 network

Refer to the exhibit. A network administrator has implemented OSPF and the network has converged. If all router interfaces are enabled and functional, what route will OSPF view as lowest cost when moving frames from Host3 to Host1?

R3 to R4 to R1
R3 to R1
? R3 to R2 to R1
R3 to R5 to R2 to R1

Refer to the exhibit. Which commands configure router A for OSPF?

router ospf 1
network 192.168.10.0

? router ospf 1
? network 192.168.10.64 0.0.0.63 area 0
? network 192.168.10.192 0.0.0.3 area 0

router ospf 1
network 192.168.10.64 255.255.255.192
network 192.168.10.192 255.255.255.252

router ospf 1
network 192.168.10.0 area 0


Refer to the exhibit. Which network statement configures the home router to allow all the interfaces to participate in OSPF?

network 10.0.0.0 0.3.255.255 area 0
network 10.8.0.0 0.0.0.3 area 0
? network 10.8.0.0 0.3.255.255 area 0
network 10.10.0.0 0.0.0.3 area 0
network 10.12.0.0 0.3.255.255 area 0

Which statement is true regarding OSPF DR and BDR elections?

A new DR/BDR election occurs each time a new OSPF neighbor is added.
The router with the highest OSPF priority setting wins the election for DR.
The default priority value for a router connected to a multi-access network is 0.
? The router with the highest MAC address is elected as the DR when the default priority values are used.

Refer to the exhibit. The network administrator would like only the 172.16.32.0 network advertised to Router1. Which OSPF network command accomplishes this?

Router2(config-router)# network 172.16.0.0 0.0.0.15 area 0
Router2(config-router)# network 172.16.0.0 0.0.15.255 area 0
? Router2(config-router)# network 172.16.32.0 0.0.15.255 area 0
Router2(config-router)# network 172.16.32.0 0.0.255.255 area 0

Which two statements describe the operation of link-state routing protocols? (Choose two.)

? All routers in the same area have identical link-state databases when converged.
Routing loops are prevented by running the Diffusing Update Algorithm (DUAL).
Link-state routers send frequent periodic updates of the entire routing table.
Reliable Transport Protocol (RTP) is used to deliver and receive LSAs.
? Calculating the shortest path for each destination is accomplished with the SPF algorithm.

Refer to the exhibit. Routers A, B, and C are part of the existing OSPF network. Router D has been added to the network. All routers are running OSPF and have the indicated priorities applied to the interface. What is the DR/BDR status immediately after router D is added to the existing network?

English CISCO: DRSEnt Module 6 - V.4


An election is forced and router D wins the DR election.
? The DR and BDR do not change until the next election.
An election is forced and the existing BDR becomes the DR.
The router with the highest router ID becomes the new BDR.

Which two statements describe the use of OSPF DR/BDR elections? (Choose two.)

Elections are always optional.
Elections are required in all WAN networks.
Elections are required in point-to-point networks.
? Elections are required in broadcast multiaccess networks.
? Elections are sometimes required in NBMA networks.

Refer to the exhibit. As part of an OSPF network, R1 and R2 are trying to become adjacent neighbors. Although it appears that the two systems are communicating, neither of the routing tables include OSPF routes received from its neighbor. What could be responsible for this situation?

R1 and R2 are not on the same subnet.
The Process IDs on each router do not match.
? The timer intervals on the routers do not match.
The value set for the Transmit Delay time on both routers is too low.

Refer to the exhibit. What is the purpose of the value 128 shown in bold?

? It is the OSPF cost metric.
It is the OSPF administrative distance.
It is the value assigned by the Dijkstra algorithm that designates the distance in hops to the network.
It is the value assigned to an interface that is used by the DUAL algorithm to determine the metric.

Refer to the exhibit. What is the purpose of the configuration commands added on router B?

allows router A to form an adjacency with router B
? provides a stable OSPF router ID on router B
provides a method of testing router traffic
creates the OSPF adjacency table on router B

Refer to the exhibit. The command ip route 10.16.1.64 255.255.255.252 s0/0/0 is entered into the router. Why does network 10.16.1.64/30 appear in the routing table in addition to network 10.16.1.64/27?

? The router views 10.16.1.64/30 and 10.16.1.64/27 as two different networks. 
The static route is used as a backup route for packets destined for 10.16.1.64/27.
The AD for static routes is lower than the AD for OSPF routes.
The static route metric is lower than the OSPF metric for the 10.16.1.64/27 network.

What is the primary difference between link-state protocols and distance vector protocols with regard to route calculation?

? Distance vector protocols take existing routes from their neighbors and add to them. Link-state protocols independently calculate full routes.
Link-state protocols calculate and pass full routing tables to all routers in their associated areas, and distance vector protocols do not.
When determining invalid routes, link-state protocols use split horizon for all route computations. Distance vector protocols use reverse poisoning.
Distance vector protocols require more CPU and RAM for route calculations than link-state protocols require.

What range of networks are advertised in the OSPF updates by the command Router1(config-router)# network 192.168.0.0 0.0.15.255 area 0?

192.168.0.0/24 through 192.168.0.15/24
? 192.168.0.0/24 through 192.168.15.0/24
192.168.15.0/24 through 192.168.31.0/24
192.168.15.0/24 through 192.168.255.0/24
192.168.16.0/24 through 192.168.255.0/24


Refer to the exhibit. When establishing adjacency relationships, which IP address would router A use to send hello packets to router B?

English CISCO: DRSEnt Module 6 - V.4


10.11.0.1
10.11.0.2
10.11.0.255
? 224.0.0.5
255.255.255.255


Refer to the exhibit. Which router will be elected the DR and which will become the BDR?

R1 will be DR and R2 will be BDR.
? R1 will be DR and R3 will be BDR.
R2 will be DR and R1 will be BDR.
R2 will be DR and R3 will be BDR.
R3 will be DR and R2 will be BDR.
R3 will be DR and R1 will be BDR.

When compared to a distance vector routing protocol, what is a benefit of the hierarchical design approach that is used in large OSPF networks?

simpler configuration
reduction of router processing requirements
? isolation of network instability 
less complex network planning

What are two advantages of using a link-state routing protocol instead of a distance vector routing protocol? (Choose two.)

The topology database eliminates the need for a routing table.
Frequent periodic updates are sent to minimize the number of incorrect routes in the topological database.
? Routers have direct knowledge of all links in the network and how they are connected.
? After the initial LSA flooding, routers generally require less bandwidth to communicate changes in a topology.
A link-state routing protocol requires less router processor power.

If a network has converged, what is true about the link-state database held by each router in the same OSPF area?

? Each router has a link-state database containing the same status information.
Each router has a different link-state database depending on its position within the network.
The link-state database is stored in a designated router and is accessed by each router in the area as needed.
The link-state database in each router only contains information about adjacent routers and the status of their links.


Refer to the exhibit. RTRC was recently configured and is not sending the proper OSPF routes to RTRB, as shown in the RTRB routing table. Based on the RTRC configuration, what is most likely the problem?

English CISCO: DRSEnt Module 6 - V.4


RTRC interfaces are administratively shut down.
The OSPF process ID for RTRC does not match the process ID used on RTRB.
The interface addresses on RTRC overlap with other addresses in the network.
? The OSPF routing configuration on RTRC has a missing or incorrect network statement.
  • avatar
  • 0
  • 0

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

What prevents RIPv1 updates from being correctly advertised?
an increase in network load
?the use of variable length subnet masks
the use of multiple Layer 3 networks on the same router
a variation in connection speeds on the links to a destination
a mismatch between the configured bandwidth and the actual bandwidth of a link

What is the default administrative distance for EIGRP internal routes?
70	
?90	
100	
110	
120	
255


What is indicated when an EIGRP route is in the passive state?
The route has the highest path cost of all routes to that destination network.
The route must be confirmed by neighboring routers before it is put in the active state.
The route is a feasible successor and will be used if the active route fails.
There is no activity on the route to that network.
?The route is viable and can be used to forward traffic.

An enterprise network currently uses a star topology to connect the headquarters to four branch offices. The network administrator wants to make one of the branch offices a centralized connection for three new local offices. What is the resulting topology?
?full mesh
partial mesh
extended star
topology remains a star

Refer to the exhibit. How is the 64.0.0.0/8 route significant to the EIGRP process?
?This router is advertising a summary route to an EIGRP neighbor.
This router has the no autosummary command entered under the EIGRP routing process.
This router drops all packets that are destined to the 64.0.0.0/8 IP address range.
This router has received a summary route from an EIGRP neighbor.	
This router is using a summary route instead of a default route as a network design option.


What is the maximum distance in hops that a remote router can be and still be considered reachable by RIP?
14 hops	
?15 hops
16 hops
17 hops

Refer to the exhibit. What three conclusions can be determined based on the exhibited commands? (Choose three.)
A link-state routing protocol is used.	
?A distance vector routing protocol is used.	
?Routing information updates are broadcast every 30 seconds.
Routing information updates are broadcast every 90 seconds.
?Hop count is the only metric used for route selection.
Bandwidth, load, delay, and reliability are metrics that are used for route selection.

Refer to the exhibit. Routers A and B have EIGRP configured, and automatic summarization has been disabled on both routers. Which command applied on interface S0/0/0 of router A manually summarizes the networks in EIGRP advertisements to router B?
ip area-range eigrp 1 192.168.10.80 255.255.255.224
?ip summary-address eigrp 1 192.168.10.64 255.255.255.192
ip summary-address 192.168.10.80 0.0.0.31
ip summary-address eigrp 1 192.168.10.64 0.0.0.63
ip area-range eigrp 1 192.168.10.64 255.255.255.224

Which two features of EIGRP are different from RIPv2? (Choose two.)
?routing metric
VLSM support
?routing updates
classless routing
MD5 authentication method

Refer to the exhibit. The network is configured with RIP routing. Which mechanism prevents R1 from sending an information update about network A to R3?
poisoned reverse	
?split horizon	
holddown timers	
TTL

What three statements are true about routers that are configured for EIGRP? (Choose three.)
?They can support multiple routed protocols.
They can support only link-state protocols.
They send their entire topology tables to neighboring routers.
?They send partial routing updates in response to topology changes.
They send routing updates to all other routers in the network.
?They use hello packets to inform neighboring routers of their status.

When should EIGRP automatic summarization be turned off?
when a router has not discovered a neighbor within three minutes
when a router has more than three active interfaces	
?when a network contains discontiguous network addresses
when a router has less than five active interfaces
when a network addressing scheme uses VLSM

Refer to the exhibit. R1 is not receiving updates from R2. Conversely, R2 is not receiving updates from R1. RIP version 1 is configured. All interfaces are up and functioning. The network statements are correct. All IP addressing is correct. What can be done to fix this problem?
Convert RIP version 1 to version 2 using the version 2 command..
Remove automatic classful summarization with the no auto-summary routing protocol command.
?Replace RIP version 1 with version 2 and disable automatic classful summarization.
On both routers, configure the serial interface as a passive interface. 	
On both routers, change the subnet mask on the Fast Ethernet interface to be 255.255.255.0.

What does a router that is running RIP use to determine the best path to take when forwarding data?
the host portion of the network address
the speed of network convergence
?the calculated metric for the destination network
the number of broadcasts occurring on an interface
the number of errors occurring on an interface

What two statements are correct regarding EIGRP authentication? (Choose two.)
?EIGRP authentication uses the MD5 algorithm.
?EIGRP authentication uses a pre-shared key.
EIGRP authentication requires that both routers have the same key chain name.
EIGRP authentication uses varying levels of WEP to encrypt data exchanged between routers.
EIGRP authentication can be configured on one router and updates from this router are protected; whereas a neighbor router can be without the authentication configuration and its updates are unprotected.

Refer to the exhibit. The network administrator needs to configure a default route on the border router. Which command correctly configures a default route that will require the least amount of router processing when forwarding packets?
ip route 0.0.0.0 0.0.0.0 64.100.59.5
ip route 0.0.0.0 0.0.0.0 64.100.59.6
?ip route 0.0.0.0 0.0.0.0 s0/0/1
ip route 0.0.0.0 0.0.0.0 s1/2/1

How do EIGRP routers establish and maintain neighbor relationships?
by exchanging neighbor tables with directly attached routers
by comparing known routes to information received in updates
?by exchanging hello packets with neighboring routers
by dynamically learning new routes from neighbors
by exchanging routing tables with directly attached routers

Refer to the exhibit. A network administrator is troubleshooting a routing problem. When the show ip route command is entered on RTR-1, only the serial link between RTR-2 and RTR-3 has been learned from the RIP routing protocol. What are two issues? (Choose two.)
?RIPv1 is a classful routing protocol.
RIPv1 does not support subnetting.
The Ethernet networks on RTR-2 and RTR-3 were not entered correctly in the network statements on these routers.
?RIPv1 does not support VLSM.
RIPv1 is a classless routing protocol.

Refer to the exhibit. Which statement is true about the output from the show ip protocols command?
?RIPv2 is configured on this router.	
Auto summarization has been disabled.	
The next routing update is due in 17 seconds.	
192.168.16.1 is the address configured on the local router.

Refer to exhibit. What two features are true of the exhibited topology? (Choose two.)
introduces a single point of failure
is required when no downtime is acceptable
provides the maximum redundancy available
?provides redundancy to critical areas
represents an extended star topology
?is used to meet uptime and reliability requirements while limiting costs

Which Layer 4 protocol does EIGRP use to provide reliability for the transmission of routing information?
DUAL	
IP	
PDM	
?RTP	
TCP	
UDP

A network administrator issues the command show ip route and observes this line of output:

192.168.3.0/24 [120/2] via 192.168.2.2, 00:00:05, Serial0/0
What two pieces of information can be obtained from the output? (Choose two.)

?RIP is the routing protocol that is configured.	
This is a static route to network 192.168.3.0.	
?The metric for this route is 2.	
The next periodic update is in 5 seconds.
The autonomous system number is 120.

What is the purpose of the network command when RIP is being configured as the routing protocol?
It identifies the networks connected to the neighboring router.	
It restricts networks from being used for static routes.	
It identifies all of the destination networks that the router is allowed to install in its routing table.
?It identifies the directly connected networks that will be included in the RIP routing updates.

В корпоративной сети на настоящий момент используется звездообразная топология для соединения центрального офиса с четырьмя филиалами. Сетевому администратору требуется сделать один из филиалов точкой централизованного соединения с тремя новыми локальными офисами. Какая топология получится в результате этого?

полносвязная ячеистая
частично-ячеистая
?расширенная звезда
топология останется звездообразной

Посмотрите на изображение. Что представляет собой маршрут Null0 для сети 128.107.0.0?

Заданный дочерний маршрут.
Заданный родительский маршрут, исходящий из физического интерфейса.
?Суммарный маршрут для объявлений, не являющийся действительным путем.
Результат выполнения команды no auto-summary на маршрутизаторе.

Посмотрите на изображение. Маршрутизаторы настроены с использованием EIGRP и значений K по умолчанию. По какому маршруту пойдет пакет из сети A в сеть B?

R1, R2, R5
R1, R3, R5
R1, R2, R3, R5
R1, R2, R4, R5
?R1, R3, R2, R5
R1, R3, R2, R4, R
  • ,
  • avatar
  • 0
  • 0