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Общий доступ Windows 7

В этой статье вы узнаете, как настроить общий доступ windows 7. Что бы приступить к настройке общего доступа откройте меню «Пуск» и зайдите в «Панель управления». На панели управления откройте «Просмотр состояния сетей и задач», во вкладке «Сеть и интернет». Ваша сеть должна иметь статус «Рабочей» или «Домашней сети». Если сеть обозначена как «Общественная сеть», то вам потребуется изменить её расположение. Кликните оп надписи «Общественная сеть» и измените её статус на «Домашнюю».

Основы сетей (Network Fundamentals): Общий доступ Windows 7

Тут придётся немного подождать, так как система производит настройки. В следующем окне нажмите «Отмена». Теперь ваша сеть обозначена как домашняя и можно настроить общий доступ windows 7.

Немного отвлечемся от темы, представляю Вам русс-сайт по созданию сайтов. Не дорого и качественно!

В этом же окне откройте вкладку «Изменить дополнительные параметры общего доступа». Там вы должны будете включить параметры сетевого обнаружения и общего доступа к файлам и принтерам. Так же вы должны будете отключить общий доступ с парольной защитой. Далее не забудьте сохранить изменения.
Теперь перейдём непосредственно к настройке папки для общего доступа. Выберете папку, кликните правой кнопкой мыши и наведите мышь на вкладку «Общий доступ», в этой вкладке выберете «Конкретные пользователи». В открывшемся окне вам нужно будет добавить пользователя, который будет иметь доступ, пускай это будет, например, «Гость». Он добавится в список, и в нём вы сможете настроить уровень разрешения: «Чтение», «Чтение и запись». Нажмите «Чтение и запись», если вы хотите, что бы другой пользователь вносил изменения в папку. Далее нажмите кнопку «Общий доступ» и «Готово». Далее откройте свойства вашей папки и во вкладке «Доступ» откройте «Расширенная настройка…». Поставьте галочку на пункте «Открыть общий доступ…», нажмите «ОК». Всё, вы настроили вашу папку.
Теперь вы узнали как можно настроить общий доступ windows 7.

Cisco CCNA Exploration 3 Chapter 1

1. What statement best describes a modular switch?

-a slim-line chassis
-allows interconnection of switches on redundant backplane
-defined physical characteristics
+flexible characteristics гибкие характеристики

2. At which heirarchical layer are switches normally not required to process all ports at wire speed?

-core layer
-distribution layer
+access layer уровень доступа
-entry layer

3. Which layer of the OSI model does an access layer LAN switch use to make a forwarding decision?

-Layer 1
+Layer 2 Уровень 2
-Layer 3
-Layer 4


4. What is the likely impact of moving a conventional company architecture to a completely converged network?

-Local analog phone service can be completely outsourced to cost-effective providers.
-The Ethernet VLAN structure is less complex.
+A shared infrastructure is created resulting in a single network to manage. В результате создаётся общая инфраструктура в одной сети для удобства управления.
-QoS issues are greatly reduced.
-There is less bandwidth competition between voice and video streams.
Конечно, удобнее управлять одной сетью, чем несколькими разделёнными и кое-как соединяемыми.

5. Which layer of the hierarchical network design model is refered to as the high-speed backbone of the internetwork, where high availability and redundancy are critical?

-access layer
+core layer уровнь ядра
-data-link layer
-distribution layer
-network layer
-physical layer


6. A technician is attempting to explain Cisco StackWise technology to a client that is setting up three stackable switches. Which explanation accurately describes StackWise technology?

-StackWise technology allows up to eight ports to be bound together to increase available bandwidth.
-StackWise technology allows the switch to deliver power to end devices by using existing Ethernet cabling.
-StackWise technology allows the switch capabilities and ports to be expanded by the addition of line cards.
+StackWise technology allows up to nine switches to be interconnected via the use of a fully redundant backplane.

7. A network administrator is selecting a switch that will operate at the network core. Which three features should the switch support for optimum network performance and reliability? (Choose three.)

-port security
-security policies
+10 Gigabit Ethernet технология 10 Gigabit Ethernet
+quality of service (QoS) качество обслуживания
+hot-swappable hardware поддержка «горячей» замены железных частей коммутатора
-Power over Ethernet (PoE)


8. A network technician is asked to examine an existing switched network. Following this examination, the technician makes recommendations for adding new switches where needed and replacing existing equipment that hampers performance. The technician is given a budget and asked to proceed. Which two pieces of information would be helpful in determining necessary port density for new switches? (Choose two.)

-forwarding rate
+traffic flow analysis анализ потока трафика
+expected future growth ожидаемый рост в будущем
-number of required core connections
-number of hubs that are needed in the access layer to increase performance

9. Which three features are commonly supported at the distribution layer of the Cisco hierarchical network model? (Choose three.)

+security policies политики (правила) безопасности
-Power over Ethernet
-switch port security
+quality of service качество обслуживания (QoS)
+Layer 3 functionality функциональность третьего уровня
-end user access to network

10. Which feature supports higher throughput in switched networks by combining multiple switch ports?

-convergence
-redundant links
+link aggregation агрегация линка
-network diameter

11. Refer to the exhibit. What characteristic of hierarchical network designs is exhibited by having SW3 connected to both SW1 and Sw2?

обоим SW1 и SW2?
-scalability
-security
+redundancy избыточность
-maintainability

12. Which hierarchical design model layer controls the flow of network traffic using policies and delineates broadcast domains by performing routing functions between virtual LANs (VLANs)?

-application
-access
+distribution уровень распределения
-network
-core

13. Refer to the exhibit. Beginning with HR servers and workstations, a network engineer is designing a new security structure for the network. Which set of policies adheres to the hierarchical network model design principles?

-Implement Layer 3 switching on S1 to reduce the packet processing load on D1 and D2. Install all security processing on S1 to reduce network traffic load.
+Configure port security options on S1. Use Layer 3 access control features on D1 and D2 to limit access to the HR servers to just the HR subnet. Сконфигурировать опцию “port security” на S1. На D1 и D2, используя возможность управления доступом на третьем уровне ограничить доступ к HR серверам только для HR подсети (другими словами всем нельзя, а HR подсети с компьютерами можно получить доступ к HR серверам).
-Move all HR assets out of the data center and connect them to S1. Use Layer 3 security functions on S1 to deny all traffic into and out of S1.
-Perform all port access and Layer 3 security functions on C1.

14. Configuring communication between devices on different VLANs requires the use of which layer of the OSI model?

-Layer 1
+Layer 3 Уровень 3
-Layer 4
-Layer 5

15. Which two features are supported at all three levels of the Cisco three-layer hierarchical model? (Choose two.)

-Power over Ethernet
-load balancing across redundant trunk links
-redundant components
+Quality of Service Качество обслуживания
+link aggregation Агрегация линка

16. Which hierarchical design characteristic would be recommended at both the core and distribution layers to protect the network in the case of a route failure?

-PoE
+redundancy избыточность
-aggregation
-access lists

17. For organizations that are implementing a voice over IP solution, what functionality should be enabled at all three layers of the hierarchical network?

-Power over Ethernet
+quality of service качество обслуживания (QoS)
-switch port security
-inter-VLAN routing

18. Link aggregation should be implemented at which layer of the hierarchical network?

-core only
-distribution and core
+access and distribution на уровнях доступа и распределения
-access, distribution, and core

19. Which layer of the hierarchical design model provides a means of connecting devices to the network and controlling which devices are allowed to communicate on the network?

-application
+access уровень доступа
-distribution
-network
-core

20. Which two characteristics are associated with enterprise level switches? (Choose two.)

-low port density
+high forwarding rate высокая скорость передачи
-high latency level
+support link aggregation поддержка агрегирования линка
-predefined number of ports

Cisco Exploration 2 Chapter 3

1. What will be the result of the following commands?

ORL(config)# interface fastethernet 0/0
ORL(config-if)# ip address 172.16.3.1 255.255.255.0
ORL(config-if)# no shutdown

-The 172.16.3.0 network will be routed by any dynamic routing protocol automatically.
+A routing table entry is made to the 172.16.3.0 network with a code of "C". В таблице маршрутизации создастся запись о сети 172.16.3.0 с кодом «C».
-A static route is required to route traffic to the 172.16.3.0 network.
-The commands will be saved to the startup-configuration.

2. Why is fast convergence desirable in networks that use dynamic routing protocols?

-Routers will not allow packets to be forwarded until the network has converged.
-Hosts are unable to access their gateway until the network has converged.
+Routers may make incorrect forwarding decisions until the network has converged. Пока сеть сходится, роутеры могут создать неправильное решение о передачи данных.
-Routers will not allow configuration changes to be made until the network has converged.

3. Refer to the exhibit. Router1 and Router2 are running EIGRP. All interfaces are operational and packets can be forwarded between all networks. What information will be found in the routing table for Router1?

-Router1 will have 6 directly connected networks.
+The administrative distance of the route to network 172.16.0.0 will be 90. Административная дистанция маршрута к сети 172.16.0.0 будет равна 90.
-The metric for routes to 172.16.0.0 will be 1.
-The interface that is used to forward packets to 172.16.0.0 will always be the S0/1 interface.

4. Refer to the exhibit. If RIP is the routing protocol, what is the value of the metric from router A to network 192.168.5.0/24?

+3 
-4
-56
-624
-724

5. Which two statements correctly describe the concepts of administrative distance and metric? (Choose two.)

+Administrative distance refers to the trustworthiness of a particular route. Административная дистанция относится к достоверности (надежности) конкретного маршрута.
-A router first installs routes with higher administrative distances.
-The value of the administrative distance can not be altered by the network administrator.
+Routes with the smallest metric to a destination indicate the best path. Маршруты с наименьшей метрикой к пункту назначения указывают на лучший путь.
-The metric is always determined based on hop count.
-The metric varies depending which Layer 3 protocol is being routed, such as IP or IPX.


6. Which statement is true regarding routing protocols?

-RIP uses hop count and bandwidth as the metric for path selection and sendsupdates periodically.
-OSPF is a Cisco proprietary protocol that sends updates triggered by topology changes.
+EIGRP uses DUAL to calculate the shortest path and can be configured to do unequal cost load balancing. EIGRP использует DUAL для вычисления наикротчайшего пути и может быть сконфигурирован на балансовую передачу данных по маршрутам неравной стоимости.
-BGP is a path vector interior routing protocol.

7. The following line of code is present in the routing table:
O 10.16.1.0/27 [110/129] via 192.168.1.5, 00:00:05, Serial0/0/1
What does the number 129 indicate in this output?
Следующая строка кода представлена в таблице маршрутизации: O 10.16.1.0/27 [110/129] via 192.168.1.5, 00:00:05, Serial0/0/1 Что в этой строке показывает число 129?

+The cost for this link has a value of 129. Стоимость этого соединения равняется значению 129.
-The clock rate on this serial interface is set to 129,000.
-The next-hop router is 129 hops away from this router.
-This route has been updated 129 times in this routing table.

8. Refer to the exhibit. Which statement correctly describes how R1 will determine the best path to R2?

-R1 will install a RIP route using network A in its routing table because the administrative distance of RIP is higher than EIGRP.
-R1 will install a RIP route using network A in its routing table because the path cost from RIP is lower than EIGRP.
+R1 will install an EIGRP route using network B in its routing table because the administrative distance of EIGRP is lower than RIP. R1 будет использовать маршрут сети B с EIGRP в его таблице маршрутизации, потому что административная дистанция у EIGRP меньше, чем у RIP.
-R1 will install an EIGRP route using network B in its routing table because the path cost from EIGRP is lower than RIP.
-R1 will install an EIGRP route and a RIP route in its routing table and load balance between them.

9. Which command would the network administrator issue to determine if load balancing is in effect on a router?

-show ip protocols
+show ip route 
-show ip interface brief
-show ip interface

10. Which two conditions would create a setting where the use of a distance-vector routing protocol would be efficient? (Choose two.)

-the network requires a special hierarchical design
-fast convergence of the network is crucial
+the network is using a hub and spoke topology Сеть состоит из топологии «звезда» (hub and spoke)
+the network is using a flat design У сети простая конструкция
-there are more than 15 hops between the most distant routers

11. Which two statements are true regarding classless routing protocols? (Choose two.)

+sends subnet mask information in routing updates В обновлениях маршрутов они отправляют информацию о маске подсети.
-sends complete routing table update to all neighbors
-is supported by RIP version 1
+allows for use of both 192.168.1.0/30 and 192.168.1.16/28 subnets in the same topology позволяют использовать одновременно 192.168.1.0/30 и 192.168.1.16/28 подсети в одной и той же топологии.
-reduces the amount of address space available in an organization

12. Which of the following best describes the operation of distance vector routing protocols?

-They use hop count as their only metric.
-They only send out updates when a new network is added.
+They send their routing tables to directly connected neighbors. Они отправляют свою таблицу маршрутизации к прямо подключенным соседям.
-They flood the entire network with routing updates.

13. When multiple routing protocols have a route to the same destination network, what determines which route is installed in the routing table?

-best metric
-lowest hop count
-greatest available bandwidth
+lowest administrative distance Наименьшая административная дистанция
-lowest cost

14. Which of the following is associated with link-state routing protocols?
Что из перечисленного ниже ассоциируется с протоколами маршрутизации по состоянию канала (link state)?

-low processor overhead
-poison reverse
-routing loops
-split horizon
+shortest-path first calculations Высчитывание кратчайшего пути

15. Which of the following conditions must be met in order for a network to have converged?

-The routers in the network are operating with dynamic routing protocols.
-The routers in the network are operating with compatible versions of IOS.
-The routers in the network are operating with the same routing tables.
+The routers in the network are operating with consistent routing knowledge. Роутеры в сети работают со смешанными знаниями о маршрутах.

16. What is the purpose of a routing protocol?

-It is used to build and maintain ARP tables.
-It provides a method for segmenting and reassembling data packets.
-It allows an administrator to devise an addressing scheme for the network.
+It allows a router to share information about known networks with other routers. Он позволяет роутеру обмениваться информацией об известных сетях с другими роутерами.
-It provides a procedure for encoding and decoding data into bits for packet forwarding.

17. Which two statements are true regarding the advantages of the use of static routes? (Choose two).

+increased security Повышается безопасность
-reduced effort in configuring routes
+the administrator maintains control over routing Администратор полностью контролирует маршрутизацию.
-easier to implement in a growing network
-reduces the chance of routing errors
-increased router resource usage

18. A router learns two paths with equal metrics to a destination network via the RIP routing protocol. How will the router handle packets to the destination network?

-The router will install the first route it learned into the routing table.
+The router will install both routes in the routing table and load balance between the two. маршрутизатор установит оба маршрута в таблицу маршрутизации и балансом загрузит пакеты между ними.
-The router will put the first route in the routing table, and denote the second route as a backup route.
-The router will pick the path with the higher bandwidth and will place it in the routing table.

19. The following line of code is displayed in a routing table:
R 209.165.201.0/24 [120/2] via 192.168.252.2, 00:00:16, S0/0/0
What can be concluded from this output?

-A packet destined for host 192.168.252.2 will be forwarded out the interface connected to network 209.165.201.0/24.
+The value, 120, is used to determine the best path when a router has more than one routing protocol configured for the same destination network. Значение «120» используется для определения наилучшего пути, когда у роутера имеется больше чем один настроенный протокол маршрутизации для той же самой сети назначения.
-This route was manually configured using the ip route command.
-192.168.252.2 is an interface on the router that produced this output.

20. An engineer creates a static route by entering the Router(config)# ip route 10.0.0.0 255.255.255.0 192.168.1.2 command. What can be concluded about this route?

+The administrative distance of this route is 1. Административная дистанция у этого маршрута будет равна 1.
-192.168.1.2 is the address of an interface on this router.
-This route will display as a directly connected network in the routing table.
-Packets with a destination IP address of 192.168.1.2 will be forwarded to the 10.0.0.0/24 network first.

21. Which two statements are true regarding metrics? (Choose two.)

-RIP uses bandwidth as a metric.
-OSPF uses delay as a metric.
+EIGRP uses bandwidth as a metric. EIGRP использует пропускную способность как метрику.
+OSPF uses cost based on bandwidth as a metric. OSPF пользуется метрикой-стоимостью, основываясь на пропускной способности.
-RIP uses delay as a metric.
-EIGRP uses hop count only as a metric.

22. A growing medium-sized manufacturing company recently began to have routing instability issues. The company uses static routes and has a mixture of over 30 Cisco and non-Cisco routers. The network administrator has decided to convert the network to dynamic routing. What characteristics of protocols should be considered in this selection process?

-Distance vector routing protocols, such as RIP, converge more quickly than do link-state routing protocols.
-EIGRP can be used on all of the routers in the company.
+OSPF can be used between the routers. Между маршрутизаторами можно использовать OSPF.
-An exterior routing protocol, such as BGP, is recommended for growing companies.
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Cisco Exploration 2 Chapter 2

1. Which of the following is true regarding CDP and the graphic shown?

-CDP running on Router D will gather information about routers A, B, C, and E.
+By default, Router A will receive CDP advertisements from routers B and C. По умолчанию маршрутизатор A будет получать CDP рассылку от маршрутизаторов B и C.
-If routers D and E are running different routing protocols, they will not exchange CDP information.
-Router E can use CDP to identify the IOS running on Router B.

2. A router has one static route to each destination network. Which two scenarios would require an administrator to alter the static routes that are configured on that router? (Choose two.)

+The destination network no longer exists. Сеть назначения больше не существует.
-The destination network is moved to a different interface on the same router.
-The path between the source and destination is upgraded with a higher bandwidth link.
+A topology change occurs where the existing next-hop address or exit interface is not accessible. Произошло изменение топологии и теперь существующий ip адрес следующего устройства (next-hop) за роутером или интерфейс выхода больше не существует.
-The remote destination network interface has to be down for 15 minutes of maintenance.

3. Refer to the exhibit. A company network engineer is assigned to establish connectivity between the two Ethernet networks so that hosts on the 10.1.1.0/24 subnet can contact hosts on the 10.1.2.0/24 subnet. The engineer has been told to use only static routing for these company routers. Which set of commands will establish connectivity between the two Ethernet networks?

-
R1(config)# ip route 10.1.2.0 255.255.255.0 192.168.0.1 
R2(config)# ip route 10.1.1.0 255.255.255.0 192.168.0.2
-
R1(config)# ip route 10.1.2.0 255.255.255.0 192.168.0.2 
R2(config)# ip route 10.1.1.0 255.255.255.0 192.168.0.1
+
R1(config)# ip route 10.1.1.0 255.255.255.0 192.168.0.2 
R2(config)# ip route 10.1.2.0 255.255.255.0 192.168.0.1

-
R1(config)# ip route 10.1.1.0 255.255.255.0 192.168.0.1 
R2(config)# ip route 10.1.2.0 255.255.255.0 192.168.0.2
-
R1(config)# ip route 0.0.0.0 0.0.0.0 10.1.2.1 
R2(config)# ip route 0.0.0.0 0.0.0.0 10.1.1.1

4. Refer to the exhibit. How will packets destined to the 172.16.0.0 network be forwarded?

+Router1 will perform recursive lookup and packet will exit S0/0. Маршрутизатор Router1 выполнит рекурсивный поиск и перешлет пакет к интерфейсу S0/0.
-Router1 will perform recursive lookup and packet will exit S0/1.
-There is no matching interface associated with network 172.16.0.0 so packets will be dropped.
-There is no matching interface associated with network 172.16.0.0 so packets will take gateway of last resort and exit out S0/2.

5. A static route that points to the next hop IP will have what administrative distance and metric in the routing table?

-administrative distance of 0 and metric of 0
-administrative distance of 0 and metric of 1
+administrative distance of 1 and metric of 0 административная дистанция = 1, метрика = 0
-administrative distance of 1 and metric of 1


6. The routers in the diagram use the subnet assignments shown. What is the most efficient route summary that can be configured on Router3 to advertise the internal networks to the cloud?

-192.1.1.0/26 and 192.1.1.64/27
-192.1.1.128/25
-192.1.1.0/23 and 192.1.1.64/23
-192.1.1.0/24
+192.1.1.0/25 
-192.1.1.0/24 and 192.1.1.64/24

7. Refer to the exhibit. What is the significance of the /8 in the route to the 10.0.0.0 network?

-It indicates that there are 8 hops between this router and the 10.0.0.0 network.
-It represents the time, in milliseconds, it takes for a ping to reply when sent to the 10.0.0.0 network.
-It indicates that there are 8 subnets in the destination network to which the router can forward packets.
+It indicates the number of consecutive bits, from the left, in the destination IP address of a packet that must match 10.0.0.0 to use that route. Цифра показывает количество последовательных бит взятых слева, которые надо сравнить с IP адресом получателя (из пакета). Для использования этого маршрута первые 8 бит IP адреса получателя должны совпадать.

8. Refer to the exhibit. Given the output in the exhibit, how would a clock rate be determined for this link?

-The rate would be negotiated by both routers.
-A rate would not be selected due to the DCE/DTE connection mismatch.
-The rate configured on the DTE determines the clock rate.
+The rate configured on the DCE determines the clock rate. Интервал конфигурируется на DCE устройстве, которое в свою очередь определяет clock rate этого соединения.

9. What address can be used to summarize networks 172.16.1.0/24, 172.16.2.0/24, 172.16.3.0/24, and 172.16.4.0/24?

172.16.1.0/24, 172.16.2.0/24, 172.16.3.0/24, и 172.16.4.0/24?
+172.16.0.0/21 
-172.16.1.0/22
-172.16.0.0 255.255.255.248
-172.16.0.0 255.255.252.0

10. Refer to the exhibit. Which set of commands will configure static routes that will allow the WinterPark and the Altamonte routers to deliver packets from each LAN and direct all other traffic to the Internet?

+
WinterPark(config)# ip route 0.0.0.0 0.0.0.0 192.168.146.1 
Altamonte(config)# ip route 10.0.234.0 255.255.255.0 192.168.146.2 
Altamonte(config)# ip route 0.0.0.0 0.0.0.0 s0/1

-
WinterPark(config)# ip route 0.0.0.0 0.0.0.0 192.168.146.1 
Altamonte(config)# ip route 10.0.234.0 255.255.255.0 192.168.146.2 
Altamonte(config)# ip route 198.18.222.0 255.255.255.255 s0/1
-
WinterPark(config)# ip route 172.191.67.0 255.255.255.0 192.168.146.1 
WinterPark(config)# ip route 0.0.0.0 0.0.0.0 192.168.146.1 
Altamonte(config)# ip route 10.0.234.0 255.255.255.0 192.168.146.2
-
WinterPark(config)# ip route 172.191.67.0 255.255.255.0 192.168.146.1 
Altamonte(config)# ip route 10.0.234.0 255.255.255.0 192.168.146.2 
Altamonte(config)# ip route 0.0.0.0 0.0.0.0 s0/0

11. Hosts on two separate subnets cannot communicate. The network administrator suspects a missing route in one of the routing tables. Which three commands can be used to help troubleshoot Layer 3 connectivity issues? (Choose three.)

+ping 
-show arp
+traceroute 
+show ip route 
-show interface
-show cdp neighbor detail

12. Refer to the exhibit. What two commands are required to provide connectivity between the 192.168.1.0 and 10.0.0.0 networks without requiring recursive lookup? (Choose two.)

+A(config)# ip route 10.0.0.0 255.0.0.0 s 0/1/0 
-A(config)# ip route 10.0.0.0 255.0.0.0 172.16.40.2
-A (config)# ip route 10.0.0.0 255.0.0.0 s 0/0/0
+B(config)# ip route 192.168.1.0 255.255.255.0 s 0/0/0 
-B (config)# ip route 192.168.1.0 255.255.255.0 172.16.40.1
-B(config)# ip route 192.168.1.0 255.255.255.0 s 0/1/0

13. A network administrator enters the following command into Router1: ip route 192.168.0.0 255.255.255.0 S0/1/0. Router1 then receives a packet that is destined for 192.168.0.22/24. After finding the recently configured static route in the routing table, what does Router1 do next to process the packet?
Сетевой администратор ввёл следующую команду в маршрутизатор Router1:
ip route 192.168.0.0 255.255.255.0 S0/1/0

-drops the packet because the destination host is not listed in the routing table
-looks up the MAC address of the S0/1/0 interface to determine the destination MAC address of the new frame
-performs a recursive lookup for the IP address of the S0/1/0 interface before forwarding the packet
+encapsulates the packet into a frame for the WAN link and forwards the packet out the S0/1/0 interface инкапсулирует пакет в фрейм для WAN соединения и вышлет пакет из интерфейса S0/1/0

14. Refer to the exhibit. What two commands will change the next-hop address for the 10.0.0.0/8 network from 172.16.40.2 to 192.168.1.2? (Choose two.)

-A(config)# no network 10.0.0.0 255.0.0.0 172.16.40.2
-A(config)# no ip address 10.0.0.1 255.0.0.0 172.16.40.2
+A(config)# no ip route 10.0.0.0 255.0.0.0 172.16.40.2 
-A(config)# ip route 10.0.0.0 255.0.0.0 s0/0/0
+A(config)# ip route 10.0.0.0 255.0.0.0 192.168.1.2 

15. Which piece of information is available from examining the output of the command show ip interface brief?

-Interface speed and duplex
-Interface MTU
-Errors
-Interface MAC address
+Interface IP address IP адрес интерфейса

16. What happens to a static route entry in a routing table when the outgoing interface is not available?

+The route is removed from the table. Маршрут будет удален из таблицы.
-The router polls neighbors for a replacement route.
-The route remains in the table because it was defined as static.
-The router redirects the static route to compensate for the loss of the next hop device.

17. Why is it advisable to enter a next-hop IP address when creating a static route whose exit interface is an Ethernet network?

-Adding the next-hop address eliminates the need for the router to do any lookups in the routing table before forwarding a packet.
+In a multi-access network, the router cannot determine the next-hop MAC address for the Ethernet frame without a next-hop address. В сетях с множественным доступом роутер не способен определить MAC адрес следующего за роутером устройства для Ethernet фрейма без IP адреса следующего устройства.
-Using a next-hop address in a static route provides a route with a lower metric.
-In multi-access networks, using a next-hop address in a static route makes that route a candidate default route.

18. The output of the Router# show interfaces serial 0/1 command displays the following:
Serial0/1 is up, line protocol is down.
What is the most likely cause for the line protocol being down?
Команда Router# show interfaces serial 0/1 выводит на экран следующее:
Serial0/1 is up, line protocol is down.

-Serial0/1 is shutdown.
-There is no cable connecting the routers.
-The remote router is using serial 0/0.
+No clock rate has been set. Не был установлен clock rate (временной интервал).

19. Which of the following are displayed by the Router# show cdp neighbors command? (Choose three.)
Router# show cdp neighbors?

-load
+platform 
-reliability
+holdtime 
+local interface 

20. What two devices are responsible for converting the data from the WAN service provider into a form acceptable by the router? (Choose two).

-the serial port of the router
+a modem модем
-a switch
-the ethernet port of the router
+a CSU/DSU device CSU/DSU устройство
-a DTE device

21. Which two statements describe functions or characteristics of CDP? (Choose two.)

+It starts up automatically and allows the device to detect directly connected neighbor devices that use CDP. CDP запускается автоматически и позволяет устройствам обнаруживать прямо подключенные (соседские) устройства, которые также используют CDP.
-It operates at the network layer and allows two systems to learn about each other.
-It creates a topology map of the entire network.
+It allows systems to learn about each other even if different network layer protocols are configured. CDP позволяет системам узнавать о других системах, даже если они сконфигурированы с различными сетевыми протоколами.
-It forwards advertisements about routes for faster convergence.

22. Refer to the exhibit. Which static route should be configured on Router1 so that host A will be able to reach host B on the 172.16.0.0 network?

-ip route 192.168.0.0 172.16.0.0 255.255.0.0
-ip route 172.16.0.0 255.255.0.0 192.168.0.1
-ip route 172.16.0.0 255.255.0.0 S0/0/1
+ip route 172.16.0.0 255.255.0.0 S0/0/0  
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Cisco CCNA Exploration 2 Chapter 1

1. Passwords can be used to restrict access to all or parts of the Cisco IOS. Select the modes and interfaces that can be protected with passwords. (Choose three.)

+VTY interface Телнет
+console interface Консоль
-Ethernet interface
-secret EXEC mode
+privileged EXEC mode Привилегированный режим
-router configuration mode

Телнет, консоль и привилегрованный режим могут быть защищены паролем.
2. What header address information does a router change in the information it receives from an attached Ethernet interface before information is transmitted out another interface?

-only the Layer 2 source address
-only the Layer 2 destination address
-only the Layer 3 source address
-only the Layer 3 destination address
+the Layer 2 source and destination address Источник уровня 2 и адрес пункта назначения
-the Layer 3 source and destination address

IP адреса роутер трогать не будет, а вот MAC адреса обязательно поменяет (источник — он сам, а пункт назначения — следующее активное сетевое устройство).
3. If a router cannot find a valid configuration file during the startup sequence, what will occur?

-The startup sequence will reset.
+The router will prompt the user for a response to enter setup mode. Маршрутизатор запросит у пользователя ответ для входа в режим конфигурации (setup mode).
-The startup sequence will halt until a valid configuration file is acquired.
-The router will generate a default configuration file based on the last valid configuration.
-The router will monitor local traffic to determine routing protocol configuration requirements

Если вы уже подключались к маршрутизатору без настроек, то должны были видеть этот вопрос: «Would you like to enter the initial configuration dialog? [yes/no]: ». Режим конфигурации представляет собой серию вопросов, и на основе полученных ответов маршрутизатор примет базовую настройку. Этот режим не используется и на протяжении курса CCNA использоваться не будет.
4. Refer to the exhibit. What can be concluded from the routing table output in the exhibit? (Choose two.)

-This router only has two interfaces.
-The router interfaces are not operational yet.
-This router is configured to forward packets to remote networks.
+The FastEthernet0/0 and Serial0/0/0 interfaces of this router were configured with an IP address and the no shutdown command.

Интерфейсы FastEthernet0/0 и Serial0/0/0 на данном роутере были настроены с назначением IP-адреса и использованием команды «no shutdown».
+An IP packet received by this router with a destination address of 198.18.9.1 will be forwarded out of the Serial0/0/0 interface. IP-пакет, полученный этим маршрутизатором с адресом назначения 198.18.9.1 будет передан через (из) интерфейс Serial0/0/0.
На рисунке нас должны интересовать две последние строки. Начинаются они с литеры «C», а это значит, что сеть (IP-адрес в строке) подключена напрямую к интерфейсу (в конце строки). Если бы интерфейс не работал, т.е. находился бы в состоянии «shutdown» (выключено), то в таблице маршрутизации мы бы его и не видели. Следовательно интерфейсы имеют корректный IP-адрес и команду «no shutdown» (включено). Адрес 192.168.9.1 входит в состав сети 192.168.8.0/22, а следовательно пакеты будут идти согласно таблице маршрутизации — из интерфейса Serial0/0/0.
5. Refer to the exhibit. The frame shown in the exhibit was received by the router. The router interfaces are operational. How will the router process this frame? (Choose two.)

-The router will change the source and destination IP address in the packet before forwarding the frame.
+The router will change the frame type to one supported by the WAN link before forwarding the frame. Перед передачей фрейма из интерфейса S0/0/0 маршрутизатор изменит тип фрейма на поддерживаемый WAN линком (соединением).
-The router will use the destination MAC address to determine which interface to forward the packet.
-The router will look up the MAC address of the S0/0/0 interface in the ARP table and add it to the frame before forwarding.
+The frame was received on the Fa0/0 interface of the router and will be switched to the S0/0/0 interface. Фрейм был принят на интерфейсе Fa0/0 и будет передан на интерфейс S0/0/0.
-The frame was received on the S0/0/0 interface of the router and will be switched to the Fa0/0 interface.
На рисунке мы видим фрейм и маршрутизатор с двумя соединениями: черненький провод - это LAN, красненький - WAN.

При передаче фрейма с одной среды передачи данных в другую требуется изменить формат фрейма, а следовательно изменится поле Type. Во фрейме мы видим область 3-го уровня (Layer 3), в ней указан пункт назначения и отправления (Dest. IP и Source IP соответственно). Дальше смотрим на маршрутизатор и видим, что у LAN'а сеть 192.168.2.0/24, в которую входит адрес источника (Source IP 192.168.2.122), а у WAN'а сеть 192.168.5.1, в которую входит пункт назначения.

6. The serial connection shown in the graphic needs to be configured. Which configuration commands must be made on the Sydney router to establish connectivity with the Melbourne site? (Choose three.)

+Sydney(config-if)# ip address 201.100.53.2 255.255.255.0 команды не переводятся, смотрите пояснение к вопросу
+Sydney(config-if)# no shutdown команды не переводятся
-Sydney(config-if)# ip address 201.100.53.1 255.255.255.224
+Sydney(config-if)# clock rate 56000 команды не переводятся
-Sydney(config-if)# ip host Melbourne 201.100.53.2


7. Which two statements correctly describe the components of a router? (Choose two.)

-RAM permanently stores the configuration file used during the boot sequence.
+ROM contains diagnostics executed on hardware modules. ROM содержит программы, выполняемые для диагностики "железных" (физических) модулей.
-NVRAM stores a backup copy of the IOS used during the boot sequence.
+Flash memory does not lose its contents during a reboot. Флеш память не теряет своё содержимое во время перезагрузки маршрутизатора.
-ROM contains the most current and most complete version of the IOS.
-Flash contains boot system commands to identify the location of the IOS

8. Refer to the exhibit. After host 2 is connected to the switch on the LAN, host 2 is unable to communicate with host 1. What is the cause of this problem?

-The subnet mask of host 2 is incorrect.
+Host 1 and host 2 are on different networks. Хост 1 и хост 2 находятся в различных сетях.
-The switch needs an IP address that is not configured.
-The router LAN interface and host 1 are on different networks.
-The IP address of host 1 is on a different network than is the LAN interface of the router.

9. A network administrator has just entered new configurations into Router1. Which command should be executed to save configuration changes to NVRAM?

-Router1# copy running-config flash
-Router1(config)# copy running-config flash
+Router1# copy running-config startup-config команда не переводится, смотри объяснение
-Router1(config)# copy running-config startup-config
-Router1# copy startup-config running-config
-Router1(config)# copy startup-config running-config

10. Which are functions of a router? (Choose three.)

+packet switching коммутация пакетов
-extension of network segments
+segmentation of broadcast domains сегментация широковещательных доменов
+selection of best path based on logical addressing выбор наилучшего пути основываясь на логической адресации
-election of best path based on physical addressing

11. Refer to the exhibit. All routers have a route in its routing table to each network that is shown in the exhibit. Default routes have not been issued on these routers. What can be concluded about how packets are forwarded in this network? (Choose two.)

-If RouterC receives a packet that is destined for 10.5.1.1, it will be forwarded out interface Fa0/0.
+If RouterA receives a packet that is destined for 192.168.3.146, it will be forwarded out interface S0/0/1. Если маршрутизатор A получает пакет, который предназначается для 192.168.3.146, то пакет будет передан из интерфейса S0/0/1.
+If RouterB receives a packet that is destined for 10.5.27.15, it will be forwarded out interface S0/0/1. Если маршрутизатор B получает пакет, который предназначается для 10.5.27.15, то пакет будет передан из интерфейса S0/0/1.
-If RouterB receives a packet that is destined for 172.20.255.1, it will be forwarded out interface S0/0/0.
-If RouterC receives a packet that is destined for 192.16.5.101, it will be forwarded out interface S0/0/1.

12. What three processes does a router execute when it receives a packet from one network that is destined for another network? (Choose three.)

+decapsulates the Layer 3 packet by stripping off the Layer 2 frame header декапсулирует пакет до уровня 3 очищая его от заголовка фрейма уровня 2
-uses the destination MAC Address in the IP Header to look up the next-hop address in the routing table
-leaves the Layer 2 frame header intact when decapsulating the Layer 3 packet
+uses the destination IP Address in the IP header to look up the next-hop address in the routing table использует IP-адрес пункта назначения (который содержится в заголовке IP пакета) для поиска (в таблице маршрутизации) адреса следующего устройства, на который нужно передать пакет.
+encapsulates the Layer 3 packet into the new Layer 2 frame and forwards it out the exit interface энкапсулирует пакет уровня 3 в новый фрейм уровня 2 и передаёт его из соответствующего интерфейса
-encapsulates the Layer 3 packet into a special Layer 1 frame and forwards it to the exit interface

13. Refer to the exhibit. What can be concluded from the output of the running-configuration of a router?

-The passwords are encrypted.
-The current configuration was saved to NVRAM.
-The configuration that is shown will be the one used on the next reboot.
+The commands that are displayed determine the current operation of the router. 

14. Refer to the exhibit. Host A pings host B. When R4 accepts the ping into the Ethernet interface, what two pieces of header information are included? (Choose two.)

-source IP address: 192.168.10.129
-source IP address: BBBB.3333.5677
-destination IP address: 192.168.10.33
+destination IP address: 192.168.10.134 IP-адрес пункта назначения 192.168.10.134
+destination MAC address: 9999.DADC.1234 MAC-адрес пункта назначения 9999.DADC.1234

15. What is the outcome of entering these commands?
R1(config)# line vty 0 4
R1(config-line)# password check123
R1(config-line)# login

-ensures that a password is entered before entering user EXEC mode
+sets the password to be used for connecting to this router via Telnet установится пароль, который будет использоваться для соединения с этим маршрутизатором через Telnet
-requires check123 to be entered before the configuration can be saved
-creates a local user account for logging in to a router or switch

16. What is the default sequence for loading the configuration file?

-NVRAM, FLASH, ROM
-FLASH, TFTP,CONSOLE
+NVRAM, TFTP, CONSOLE NVRAM, TFTP сервер, консоль.
-FLASH, TFTP, ROM

17. Which of the following is the correct flow of routines for a router startup?

+load bootstrap, load IOS, apply configuration загружается начальная загрузка, операционная система и затем применяются настройки
-load bootstrap, apply configuration, load IOS
-load IOS, load bootstrap, apply configuration, check hardware
-check hardware, apply configuration, load bootstrap, load IOS

18. From what location can a router load the Cisco IOS during the boot process? (Choose two.)

-RAM
+TFTP server с TFTP сервера
-NVRAM
-setup routine
+Flash memory с флеш памяти
-terminal

19. The network administrator needs to connect two routers directly via their FastEthernet ports. What cable should the network administrator use?

-straight-through
-rollover
+cross-over Перекрестный
-serial

20. Which two statements describe characteristics of load balancing? (Choose two.)

-Load balancing occurs when a router sends the same packet to different destination networks.
-Load balancing occurs when a router sends the same packet to different destination networks.
+Load balancing allows a router to forward packets over multiple paths to the same destination network. Балансировка загрузки позволяет маршрутизатору передавать пакеты по нескольким путям в одну сеть назначения.
+Unequal cost load balancing is supported by EIGRP. Неравная стоимость балансировки загрузки поддерживается только протоколом динамической маршрутизации EIGRP.
-If multiple paths with different metrics to a destinations exist, the router cannot support load balancing.

21. What information about the router and its startup process can be gathered from the output of the show version command? (Choose three.)

+the last restart method Последний метод перезагрузки
-the command buffer contents
-the amount of NVRAM and FLASH used
+the configuration register settings параметры конфигурационного регистра
+the location from where the IOS loaded место, из которого была загружена IOS

22. Which interfaces in the exhibit could be used for a leased line WAN connection? (Choose two.)

+1 Serial0/0/0 и Serial0/0/1
-2
-3
+4 Serial0/1/0
-5
-6

23. Refer to the exhibit. The network administrator has configured the router with the interface IP addresses shown for the directly connected networks. Pings from the router to hosts on the connected networks or pings between router interfaces are not working. What is the most likely problem?

-The destination networks do not exist.
-The IP addresses on the router interfaces must be configured as network addresses and not host addresses.
+The interfaces must be enabled with the no shutdown command. Интерфейсы должны быть включены командой "no shutdown"
-Each interface must be configured with the clock rate command.

Cisco Exploration 1 Chapter 4

1. Why are port numbers included in the TCP header of a segment?

-to indicate the correct router interface that should be used to forward a segment
-to identify which switch ports should receive or forward the segment
-to determine which Layer 3 protocol should be used to encapsulate the data
+to enable a receiving host to forward the data to the appropriate application Для того, чтобы получающий хост передал данные соответствующему приложению.
-to allow the receiving host to assemble the packet in the proper order

2. With TCP/IP data encapsulation, which range of port numbers identifies all well-known applications?

-0 to 255
-256 to 1022
+0 to 1023 
-1024 to 2047
-49153 to 65535

3. Which event occurs during the transport layer three-way handshake?

-The two applications exchange data.
+TCP initializes the sequence numbers for the sessions. TCP инициализирует числовую последовательность для сессии.
-UDP establishes the maximum number of bytes to be sent.
-The server acknowledges the bytes of data received from the client.

4. Refer to the exhibit. Host A is using FTP to download a large file from Server 1. During the download process, Server 1 does not receive an acknowledgment from Host A for several bytes of transferred data. What action will Server 1 take as a result?

-create a Layer 1 jam signal
+reach a timeout and resend the data that needs to be acknowledged сервер подождет до достижения тайм-аута (истечения времени ожидания) и повторно отправит данные, для которых требовалось подтверждение.
-send a RESET bit to the host
-change the window size in the Layer 4 header

5. Refer to the exhibit. What two pieces of information can be determined from the output that is shown? (Choose two.)

+The local host is using three client sessions. У локального хоста 3 сессии
+The local host is using web sessions to a remote server. Локальный хост использует веб сессию с удаленным сервером.
-The local host is listening for TCP connections using public addresses.
-The local host is using well-known port numbers to identify the source ports.
-The local host is performing the three-way handshake with 192.168.1.101:1037.


6. Which OSI model layer is responsible for regulating the flow of information from source to destination, reliably and accurately?

-application
-presentation
-session
+transport транспортный уровень
-network

7. After a web browser makes a request to a web server that is listening to the standard port, what will be the source port number in the TCP header of the response from the server?

-13
-53
+80 
-1024
-1728

8. Which is an important characteristic of UDP?

-acknowledgement of data delivery
+minimal delays in data delivery минимальная задержка при передаче данных
-high reliability of data delivery
-same order data delivery

9. Refer to the exhibit. In line 7 of this Wireshark capture, what TCP operation is being performed?

+session establishment Устанавливается сессия
-segment retransmit
-data transfer
-session disconnect

10. Which information is found in both the TCP and UDP header information?

-sequencing
-flow control
-acknowledgments
+source and destination источник и пункт назначения (от кого и кому)

11. Why is flow control used for TCP data transfer?

-to synchronize equipment speed for sent data
-to synchronize and order sequence numbers so data is sent in complete numerical order
+to prevent the receiver from being overwhelmed by incoming data для предотвращения получения перегрузки входящих данных
-to synchronize window size on the server
-to simplify data transfer to multiple hosts

12. During a TCP communication session, if the packets arrive to the destination out of order, what will happen to the original message?

-The packets will not be delivered.
-The packets will be retransmitted from the source.
+The packets will be delivered and reassembled at the destination. Пакеты будут доставлены и собраны в месте назначения.
-The packets will be delivered and not reassembled at the destination.

13. Which transport layer protocol provides low overhead and would be used for applications which do not require reliable data delivery?

-TCP
-IP
+UDP 
-HTTP
-DNS

14. Refer to the exhibit. The initial TCP exchange of data between two hosts is shown in the exhibit. Assuming an initial sequence number of 0, what sequence number will be included in Acknowledgment 2 if Segment 6 is lost?

-2
-3
-6
-1850
+3431 
-3475

15. What mechanism is used by TCP to provide flow control as segments travel from source to destination?

-sequence numbers
-session establishment
+window size Размер окна
-acknowledgments

16. Refer to the exhibit. Host1 is in the process of setting up a TCP session with Host2. Host1 has sent a SYN message to begin session establishment. What happens next?

-Host1 sends a segment with the ACK flag = 0, SYN flag = 0 to Host2.
-Host1 sends a segment with the ACK flag = 1, SYN flag = 0 to Host2.
-Host1 sends a segment with the ACK flag = 1, SYN flag = 1 to Host2.
-Host2 sends a segment with the ACK flag = 0, SYN flag = 1 to Host1.
-Host2 sends a segment with the ACK flag = 1, SYN flag = 0 to Host1.
+Host2 sends a segment with the ACK flag = 1, SYN flag = 1 to Host1. Хост 2 отправит сегмент с ACK флагом = 1 и SYN флагом = 1 к Хосту 1.

17. What is dynamically selected by the source host when forwarding data?

-destination logical address
-source physical address
-default gateway address
+source port порт источника

18. Which two options represent Layer 4 addressing? (Choose two.)

-identifies the destination network
-identifies source and destination hosts
+identifies the communicating applications идентифицирует коммуникационное приложение
+identifies multiple conversations between the hosts идентифицирует несколько «разговоров» между хостами
-identifies the devices communicating over the local media

19. What are two features of the User Datagram Protocol (UDP)? (Choose two.)

-flow control
+low overhead низкие накладные расходы (накладки)
+connectionless без установки соединения
-connection-oriented
-sequence and acknowledgements

20. Based on the transport layer header shown in the diagram, which of the following statements describe the established session? (Choose two.)

-This is a UDP header.
+This contains a Telnet request. В нём содержится Telnet запрос.
-This contains a TFTP data transfer.
-The return packet from this remote host will have an Acknowledgement Number of 43693.
+This is a TCP header. Это TCP заголовок.

21. Which three features allow TCP to reliably and accurately track the transmission of data from source to destination?

-encapsulation
+flow control управление потоком
-connectionless services
+session establishment создание сессии
+numbering and sequencing нумерация и последовательность

-best effort delivery

Cisco Exploration 1 Chapter 3

1. What is the automated service that matches resource names with the required IP address?

-HTTP
-SSH
-FQDN
+DNS 
-Telnet
-SMTP

2. How does the application layer on a server usually process multiple client request for services?

-ceases all connections to the service
-denies multiple connections to a single daemon
-suspends the current connection to allow the new connection
+uses support from lower layer functions to distinguish between connections to the service использует поддержку функциями нижних уровней для отличий между подсоединенных к сервису

3. As compared to SSH, what is the primary disadvantage of telnet?

-not widely available
+does not support encryption Telnet не поддерживает шифрование.
-consumes more network bandwidth
-does not support authentication

4. What application layer protocol is commonly used to support for file transfers between a client and a server?

-HTML
-HTTP
+FTP 
-Telnet

5. What are two characteristics of clients in data networks? (Choose two.)

-use daemons
+initiate data exchanges инициализирует (запускает) обмен данными
-are repositories of data
+may upload data to servers может загрузить данные на сервер
-listen for requests from servers


6. What are two forms of application layer software? (Choose two.)

+applications Приложения
-dialogs
-requests
+services Сервисы (Услуги)
-syntax

7. What is the purpose of resource records in DNS?

-temporarily holds resolved entries
+used by the server to resolve names используется сервером для разрешения имён
-sent by the client to during a query
-passes authentication information between the server and client

8. What three protocols operate at the Application layer of the OSI model? (Choose three.)

-ARP
+DNS 
-PPP
+SMTP 
+POP 
-ICMP

9. What are three properties of peer-to-peer applications? (Choose three.)

+acts as both a client and server within the same communication. Они работают одновременно как клиент и сервер внутри одного и того же соединения (связи).
-requires centralized account administration.
+hybrid mode includes a centralized directory of files. Гибридный режим включает централизованную директорию с файлами.
+can be used in client-server networks. Они могут использоваться в клиент-серверных сетях.
-requires a direct physical connection between devices.
-centralized authentication is required.

10. A network administrator is designing a network for a new branch office of twenty-five users. What are the advantages of using a client-server model? (Choose two.)

+centralized administration централизованное администрирование
-does not require specialized software
+security is easier to enforce более простое соблюдение требований безопасности
-lower cost implementation
-provides a single point of failure

11. Which email components are used to forward mail between servers? (Choose two.)

-MDA
-IMAP
+MTA 
-POP
+SMTP 
-MUA

12. Which statements are correct concerning the role of the MTA in handling email? (Choose three.)

-routes email to the MDA on other servers
+receives email from the client’s MUA получает электронную почту от клиентов MUA
-receives email via the POP3 protocol
+passes email to the MDA for final delivery Письмо приходит в MDA для окончательной доставки
+uses SMTP to route email between servers Для направления почты между серверами используется SMTP
-delivers email to clients via the POP3 protocol

13. Refer to the exhibit. What is the destination port for the communication that is represented on line 5?

+80 
-1261
-15533
-3912
-65520

14. Which two protocols are used to control the transfer of web resources from a web server to a client browser? (Choose two.)

-ASP
-FTP
-HTML
+HTTP 
+HTTPS 
-IP

15. Which application layer protocols correctly match a corresponding function? (Choose two.)

-DNS dynamically allocates IP addresses to hosts
+HTTP transfers data from a web server to a client HTTP передает данные от веб-сервера к клиенту
-POP delivers email from the client to the server email server
-SMTP supports file sharing
+Telnet provides a virtual connection for remote access Телнет обеспечивает виртуальное соединение для удаленного доступа

16. Which layer of the OSI model supplies services that allow user to interface with the network?

-physical
-session
-network
-presentation
+application Прикладной уровень (уровень Приложений)
-transport

17. What are two characteristics of peer-to-peer networks? (Choose two.)

-scalable
-one way data flow
+decentralized resources децентрализованные ресурсы
-centralized user accounts
+resource sharing without a dedicated server обмен ресурсами происходит без выделенного сервера

18. What application layer protocol describes the services that are used for file sharing in Microsoft networks?

-DHCP
-DNS
+SMB 
-SMTP
-Telnet

19. A small home network has been installed to interconnect three computers together for gaming and file sharing. What two properties represent this network type? (Choose two.)

-User accounts are centralized.
+Security is difficult to enforce. Трудно приводимая в жизнь безопасность
-Specialized operating system software is required.
-File permissions are controlled by a single computer.
+A computer that responds to a file sharing request is functioning as a server. Компьютер, который по запросу распространяет файлы, функционирует как сервер.

20. What is the role of the OSI application layer?

-provides segmentation of data
-provides encryption and conversion of data
+provides the interface between the applications on either end of the network обеспечивает интерфейс между приложениями на каждом конце сети
-provides control of all the data flowing between the source and destination devices

Cisco Exploration 1 Chapter 2

1. What is the purpose of the TCP/IP Network Access layer?

-path determination and packet switching
-data presentation
-reliability, flow control, and error detection
+network media control управление передачи сетевой среде
-the division of segments into packets

2. Refer to the exhibit. What type of network is shown?

-WAN
-MAN
+LAN локальная сеть
-WLAN

3. Which three statements best describe a Local Area Network (LAN)? (Choose three.)

+A LAN is usually in a single geographical area. Локальная сеть в основном находится в одной географической области
+The network is administered by a single organization. Сеть администрируется одной организацией
-The connection between segments in the LAN is usually through a leased connection.
-The security and access control of the network are controlled by a service provider.
+A LAN provides network services and access to applications for users within a common organization. Локальная сеть обеспечивает сетевыми услугами и доступом к приложениям для пользователей внутри организации.
-Each end of the network is generally connected to a Telecommunication Service Provider (TSP).

4. Which two layers of the OSI model have the same functions as the TCP/IP model Network Access Layer? (Choose two.)

-Network
-Transport
+Physical Физический
+Data Link Канальный
-Session

5. Refer to the exhibit. Which set of devices contains only end devices?

-A, C, D
-B, E, G, H
-C, D, G, H, I, J
-D, E, F, H, I, J
+E, F, H, I, J

6. What device is considered an intermediary device?

-file server
-IP phone
-laptop
-printer
+switch 

7. Refer to the exhibit. “Cell A” at IP address 10.0.0.34 has established an IP session with “IP Phone 1? at IP address 172.16.1.103. Based upon the graphic, which device type best describes the function of wireless device “Cell A?”

-the destination device
+an end device конечное устройство
-an intermediate device
-a media device

8. What are two functions of encapsulation? (Choose two.)

-tracks delay between end devices
-enables consistent network paths for communication
-allows modification of the original data before transmission
+identifies pieces of data as part of the same communication 
+ensures that data pieces can be directed to the correct receiving end device 

9. Which statements correctly identify the role of intermediary devices in the network? (Choose three.)

+determine pathways for data определяет путь следования для данных
-initiate data communications
+retime and retransmit data signals повторяет передачу сигналов данных
-originate the flow of data
+manage data flows управляет потоком данных
-final termination point for data flow

10. Select the statements that are correct concerning network protocols. (Choose three.)

+define the structure of layer specific PDU’s сетевые протоколы на основе уровня PDU определяют структуры данных
-dictate how to accomplish layer functions
+outline the functions necessary for communications between layers ограничиваются функциями, необходимыми для коммуникации между уровнями
-limit the need for hardware compatibility
+require layer dependent encapsulations требуют уровень, в зависимости от инкапсуляции
-eliminate standardization among vendors

11. What is a primary function of the trailer information added by the data link layer encapsulation?

+supports error detection поддержка выявления ошибок
-ensures ordered arrival of data
-provides delivery to correct destination
-identifies the devices on the local network
-assists intermediary devices with processing and path selection

12. What is a PDU?

-corruption of a frame during transmission
-data reassembled at the destination
-retransmitted packets due to lost communication
+a layer specific encapsulation особая инкапсуляция конкретного уровня

13. Which characteristic correctly refers to end devices in a network?

-manage data flows
+originate data flow порождают поток данных
-retime and retransmit data signals
-determine pathways for data

14. Refer to the exhibit. Which three labels correctly identify the network types for the network segments that are shown? (Choose three.)

-Network A — WAN
+Network B — WAN
+Network C — LAN
-Network B — MAN
-Network C — WAN
+Network A – LAN

15. Refer to the exhibit. Which networking term describes the data interleaving process represented in the graphic?

-piping
-PDU
-streaming
+multiplexing мультиплексирование
-encapsulation

16. What is the primary purpose of Layer 4 port assignment?

-to identify devices on the local media
-to identify the hops between source and destination
-to identify to the intermediary devices the best path through the network
-to identify the source and destination end devices that are communicating
+to identify the processes or services that are communicating within the end devices 

17. Refer to the exhibit. Which term correctly identifies the device type that is included in the area B?

-source
-end
-transfer
+intermediary промежуточное устройство

18. Which layer encapsulates the segment into packets?

-physical
-data link
+network сетевой
-transport

19. What can be identified by examining the network layer header?

-the destination device on the local media
+the destination host address адрес хоста назначения
-the bits that will be transferred over the media
-the source application or process creating the data

20. During the encapsulation process, what occurs at the data link layer?

-No address is added.
-The logical address is added.
+The physical address is added. Добавляется физический адрес
-The process port number is added.

21. What is the proper order of the layers of the OSI model from the highest layer to the lowest layer?

-physical, network, application, data link, presentation, session, transport
-application, physical, session, transport, network, data link, presentation
-application, presentation, physical, session, data link, transport, network
+application, presentation, session, transport, network, data link, physical 
-presentation, data link, session, transport, network, physical, application

Cisco CCNA Exploration 1 Chapter 1

1. ABC Company just purchased three new routers to start their company network. Which items are needed to establish a terminal session between a PC and the router for the initial configuration? (Choose three.)

-straight-through cable.
+terminal emulation software. Программное обеспечение - эмулятор терминала
+rollover cable. Перевернутый кабель (нуль-модемный, зеркальный)
+RJ-45 to DB-9 connector. Адаптер для преобразования RJ-45(коннектор витой пары) в DB-9(COM коннектор)
-V.35 cable.


2. Which of the following descriptions are true regarding the management connections on a Cisco router? (Choose three.)

+They are non-network connections. Они не являются сетевыми подключениями.
-They are used to connect the router to the rest of the production network.
-They are synchronous serial ports.
+They are used for initial router configuration. Они используются для начальной конфигурации маршрутизатора.
+They are asynchronous serial ports. Они являются последовательными асинхронными портами.
-They are accessed using their assigned IP address.


3. What contains the instructions that a router uses to control the flow of traffic through its interfaces?

-packet configuration.
+configuration files. Конфигурационные файлы
-flash memory.
-internal components.

4. Which of the following describes the function of a WAN?

-connects peripherals in a single location.
-connects multiple networks in a single building.
-provides connectivity on a LAN.
+provides connectivity over a large geographic area. Обеспечивает связь на большой географической области

5. An internetwork must include which of the following? (Choose three.)

+switching. Коммутация
-static addressing.
-IETF standardization.
+dynamic or static routing. Динамическая и статическая маршрутизация
+consistent end-to-end addressing. Согласующаяся адрессация (из конца в конец сети)


6. Which basic components do a router and a standard desktop PC have in common? (Choose three.)

+CPU. Центральный процессор
-hard drive.
+input/output interfaces. Интерфейсы ввода/вывода
-keyboard.
-monitor.
+system bus. Системная шина

7. Terminal emulation software, such as HyperTerminal, can be used to configure a router. Which of the following HyperTerminal options shown in the graphic are correctly set to allow configuration of a Cisco router? (Choose three.)

-bits per second.
+data bits. Биты данных
+parity. Четность
+stop bits. Стоповые биты
-flow control.

8. Which of the following devices are used in the construction of a WAN? (Choose three.)

-hubs.
+routers. Роутеры
+communication servers. Коммуникационные серверы
-transceivers.
+modems. Модемы
-multi-port repeaters.

9. Which of the following are functions of RAM? (Choose three.)

-contains startup configuration file.
+stores routing table. Хранит таблицу маршрутизации
+holds fast switching cache. Содержит коммутационный кэш
-retains contents when power is removed.
+stores running configuration file. Хранит файл запущенной конфигурации

10. Why is a console connection to a router or switch preferred when troubleshooting? (Choose two.)

-can be accessed remotely.
+does not depend on network services. Не зависит от сетевых услуг
+displays startup and error messages by default. По умолчанию при запуске оборудования отображает сообщения об ошибках
-does not require special components.

11. Which router component holds the configuration file when power is lost?

-volatile random access memory.
-read only memory.
+non-volatile random access memory. Энергонезависимая память
-flash memory.

12. During the initial configuration of a 2600 series Cisco router, which cable is required for connecting a PC to the console port?

-twisted.
-crossover.
+rollover. Перевернутый
-straight.

13. A router is composed of many internal components. Which of the following components stores a copy of the router’s configuration file?

-metal-oxide memory.
-read only memory.
-flash memory.
+non-volatile random access memory. Энергонезависимая память.

14. Several Ethernet hosts on a LAN need the gateway services of a Cisco 2500 series router. Which of the following would be needed to physically connect a router to all of the hosts on the LAN? (Choose two.)

-a crossover cable between the transceiver on a router and a switch.
-a crossover cables between a switch and hosts on a LAN.
-a straight-through cable between the auxiliary port on a router and a switch.
-a rollover cable between the console port on a router and a switch.
+straight-through cables between a switch and hosts on a LAN. Прямой кабель между коммутатором и компьютерами в локальной сети
+a straight-through cable between the transceiver on a router and a switch. Прямой кабель между роутером и коммутатором.

15. Which of the following are functions of NVRAM? (Choose two.)

-stores the routing table.
+retains contents when power is removed. Сохраняет содержимое когда питание отключается
+stores the startup configuration file. Хранит начальный файл конфигурации
-contains the running configuration file.
-stores the ARP table.

16. Which of the following layers of the OSI model are incorporated in WAN standards? (Choose two.)


+physical layer. Физический уровень
-application layer.
-transport layer.
+data link layer. Канальный уровень
-session layer.

17. Which of the following are true regarding router interfaces? (Choose three.)

-provide temporary memory for the router configuration files.
+connect the router to the network for packet entry and exit. соединяют роутер к сети для ввода и вывода пакетов данных
+can be on the motherboard or a separate module. могут находиться на материнской плате или размещать в отдельных модулях
-hold the IOS image.
+connect the router to LANs and WANs. подсоединяют роутер к локальным и глобальным сетям

18. The console port can be used for which of the following? (Choose three.)

+debugging. Отладка
+password recovery. Восстановление пароля
-routing data between networks.
+troubleshooting. Устранение неполадок
-connecting one router to another.

19. Which of the following tasks can be accomplished through a management connection on a router? (Choose three.)

+troubleshooting problems. Устранение неполадок
+monitoring the system. Мониторинг системы
-capturing LAN data packets.
+configuring the router. Настройка маршрутизатора
-routing data packets.
"management connection" - это соединение для настройки или управления.

20. What do routers use to select the best path for outgoing data packets?

-ARP tables.
-bridging tables.
+routing tables. Таблицу маршрутизаци
-switching tables.

21. Select the statements that correctly describe flash memory in a 2600 series router? (Choose two.)

-holds the startup configuration by default.
+can be upgraded with single in-line memory modules. Может быть увеличена
+stores Cisco IOS software images. Хранит образ программного обеспечения (операционной системы) Cisco IOS
-stores routing table information by default.
-maintains the only copy of an IOS image after the router is booted.