Given the network diagram, which routers currently make up the IS - IS backbone?（）<br /> <img src="https://nimg.ppkao.com/2018-07/yiyu/2018073017301086469.jpg?sign=51a7d70a0423099ff16804d0340a64f4&t=62d496e4" />..

第1题

[] Given the network diagram, which address would successfully summarize only the networks seen? （） Given the network diagram, which address would successfully summarize only the networks seen? （）

A、A. 192.168.0.0/24 B、B . 192.168.8.0/20 C、C. 192.168.8.0/21 D、D. 192.168.12.0/20 E、E. 192.168.16.0/21 F、F. These networks cannot be summarized.

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第2题

[单选题] Refer to the exhibit. The routing protocols EIGRP and OSPF have been configured as indicated in the exhibit. Given the partial configuration of router R2, which network will be present in th e routing table of R4?（）

A、Network B B、Network A and Network B C、Network A D、neither Network A nor Network B

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第3题

[单选题] You are the network administrator setting up the IP network for a new branch office. You need at least 5 networks with 25 hosts each. You have been allocated a /24 network.Which prefix length will satisfy the given requirements?（）

A、/24 B、/26 C、/27 D、/28

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第4题

[单选题] For a given Ethernet network， the failure cycle is set to 5 seconds and the heartbeat rate is set to 2 seconds.Given these values， what is the failure detection time for the network （in seconds）？（）

A、5 B、10 C、12 D、20

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第5题

[单选题] A network administrator is trying to add a new router into an established OSPF network.The networks attached to the new router do not appear in the routing tables of the other OSPF routers.Given the information in the partial configuration shown below,what configuration error is causing this problem? （）Router(config)#router ospf 1Router(config-router)#network 10.0.0.0 255.0.0.0 area 0

A、The process id is configured improperly B、The OSPF area is configured improperly C、The network wildcard mask is configured improperly D、The network number is configured improperly E、The AS is configured improperly F、The network subnet mask is configuerd improperly

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第6题

[单选题] A network administrator is trying to add a new router into an established OSPF network.The networks attached to the new router do not appear in the routing tables of the other OSPF routers.Given the information in the partial configuration shown below,what configuration error is causing this problem?（） Router(config)#router ospf 1 Router(config-router)#network 10.0.0.0 255.0.0.0 area 0

A、The process id is configured improperly B、The OSPF area is configured improperly C、The network wildcard mask is configured improperly D、The network number is configured improperly E、The AS is configured improperly F、The network subnet mask is configuerd improperly

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第7题

[单选题] Given the host IP address of 192.168.100.60 and a network mask of 255.255.255.224 (or /27), which address represents the correct network address for the referenced host?（）

A、192.168.100.48 B、192.168.100.16 C、192.168.100.0 D、192.168.100.32

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第8题

[单选题] Given the set of routers, each with an interface on the same multi-access network: Which router can never be a designated router on that multi-access network?（）

A、RouterA B、RouterB C、RouterC D、RouterD

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第9题

[单选题] Refer to the exhibit. The routing protocols EIGRP and OSPF have been configured as indicated inthe exhibit. Given the partial configuration of router R2， which network will be present in the routingtable of R4？（）

A、Network B B、Network A and Network B C、Network A D、neither Network A nor Network B

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第10题

[单选题] A technician is troubleshooting a network connectivity issue. Given the following abbreviated trace route output: Which of the following is MOST likely occurring?（）

A、Switching loop B、Broadcast storm C、IP conflict D、Routing loop

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Given the network diagram, which routers currently make up the IS - IS backbone?（）<br /> <img src="https://nimg.ppkao.com/2018-07/yiyu/2018073017301086469.jpg?sign=51a7d70a0423099ff16804d0340a64f4&t=62d496e4" />

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