题目内容（请给出正确答案）

[主观题]

Router R1 sits inside OSPF area 1. Router R2 redistributes an E1 route into OSPF for prefi

x 2.2.2.0/24, with external metric 20. Router R22 redistributes an E2 route for the same prefix/length, external metric 10.Under what conditions will R1 choose as it s best route the route through R22？（）

A. R1 will always choose the route through R22.

B. As long as R1‘s best internal OSPF cost to reach R22 is less than 10.

C. As long as R1‘s best internal OSPF cost to reach R22 is less than 20.

D. R1 will never choo se the route through R22 if the E1 route through R2 is available.

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更多“Router R1 sits inside OSPF are…”相关的问题

第1题

Router R1 sits at an Enterprise branch office, using the Internet for its only connectivit

y back to the rest of the EnterprisE.Which of the following is not a ben efit of using an IPsec tunnel for packets sent through the Internet, between R1 and the rest of the Enterprise？（）

A. Privacy

B. Authentication

C. Allows using an IGP between R1 and the Enterprise

D. Secure communications

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第2题

Router R1 sits at an Enterprise branch office, using both the Internet and a leased line t

o another Enterprise router for its two connectivity options back into the rest of the Enterprise network. The engineer planning for this branch decided to use the leased line for all Enterprise traffic, unless it fails, in which case the Internet connection should be used to pass traffic to the Enterprise.Which of the following is most likely to be useful on the branch router？（）

A. IPsec tunnel

B. GRE tunnel

C. Floating stati c route

D. An IGP

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第3题

Refer to the exhibit. Router R1 is connected to networks 172.1 6.1.0 /26 and 172.16.1.64 /27. On the basis of the partial output in the exhibit, which statement is true？（）

Refer to the exhibit. Router R1 is connected to ne

A. Router R1 will deny the 172.16.1.0/26 route while permitting the 172.16.1.64/27 route to be advertised.

B. Router R1 will advertise both rou tes.

C. Router R1 should be reconfigured with an ACL instead of an ip prefix - list command.

D. Router R1 will deny the 172.16.1.0/27 route while permitting the 172.16.1.0/26 route to be advertised.

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第4题

Refer to the exhibit. Routers R1 and R2 have established a neighbor relationship and are e

xchanging routing information. The network design requires that R1 r eceive routing updates from R2, but not advertise any routes to R2. Which configuration command sequence will successfully accomplish this task？（）

Refer to the exhibit. Routers R1 and R2 have estab

A. R1(config)# router eigrp 1 R1(config - router)# passive - interface serial 0

B. R1(config)# access - list 2 0 deny any R1(config)# router eigrp 1 R1(config - router)# distribute - list 20 out serial 0

C. R2(config)# access - list 20 permit any R2(config)# router eigrp 1 R2(config - router)# distribute - list 20 in serial 0

D. R1(config)# access - list 20 permit any R 1(config)# router eigrp 1 R1(config - router)# distribute - list 20 in serial 0

E. R2(config)# access - list 20 deny any R2(config)# router eigrp 1 R2(config - router)# distribute - list 20 out serial 0

F. R2(config)# router eigrp 1 R2(config - router)# passive - interface serial 0

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第5题

【单选题】对于以下ACL语句描述正确的是（） router（config)#ip access-list standard TELNET router（config-std-nacl)#permit 192.168.4.2 0.0.0.0 router（config)#line vty 0 4 router（config-line)#access-class TELNET in

A.只允许192.168.4.2的数据流穿过R1

B.只允许192.168.4.2对R1进行TELNET

C.只允许192.168.4.2对R1进行TELNET 并拒绝其它流量

D.只允许192.168.4.0/24网段的数据流穿过R1

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第6题

Based on the show ip route isis output on R1, which statement is true？（）

Based on the show ip route isis output on R1, whic

A. The i su 10.1.0.0/23 route is a suppressed route.

B. The i su 10.1. 0.0/23 route is a summary route.

C. The i su 10.1.0.0/23 route is an IS - IS external route.

D. The R1 IS - IS router is an ASBR.

E. The R1 IS - IS router is an ABR that belongs to multiple IS - IS areas.

F. The R1 IS - IS router is performing route aggregation and is suppressing the more specific 10.1.0.0/23 prefix.

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第7题

某局域网通过两个路由器划分为三个子网，拓扑结构和地址分配如图1所示。1．以下是路由器R1的部分配

某局域网通过两个路由器划分为三个子网，拓扑结构和地址分配如图1所示。

某局域网通过两个路由器划分为三个子网，拓扑结构和地址分配如图1所示。1．以下是路由器R1的部分配某局

1．以下是路由器R1的部分配置命令列表：

Router＞en

Router＞conf term

Router (config) hostname R1

Router (config) int e0

R1 Router (config-if) (1)

R1 Router (config-if) no shutdown

R1 Router (config-if) (2)

R1 Router (config) ip routing

R1 Router (config) (3)

请为空缺处(1)、(2)、(3)添加合适的命令/参数，实现R1的正确配置。

2．以下是路由器R2的配置命令列表：

Router＞en

Routerconf term

Router (config) hostname R2

R2 (config) int e0

R2 (config-if) ip address 192.168.3.1 255.255.255.0

R2 (config-if) no shutdown

R2 (config-if) int s0

R2 (config-if) ip address l92.168.2.2 255.255.255.0

R2 (config-if) no shutdown

R2 (config-if) (4)

R2 (config) ip routing

R2 (config) ip route 0.0.0.00.0.0.0 (5)

R2 (config) ip classless

R2 (config) exit

R2copy run start

请为空缺处(4)、(5)添加合适的命令/参数，实现R2的正确配置。

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第8题

Examine the following excerpt from the show ip eigrp topology 10.2.2.0/24 command on route

r R1.Which answer can be verified as definitely true based on this output？（）External data:Originating router is 10.1.1.1AS number of route is 1External protocol is OSPF, external metric is 64Administrator tag is 0 (0x00000000)

A. R1 is the router that redistributed the route

B. R1‘s metric to reach subnet 10.2.2.0/24 is 64

C. The route was redistributed on a router that has a router ospf 1 command configured

D. R1 is redistributing a route to prefix 1 0.2.2.0/24 into OSPF

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第9题

Router R1 exists in an Enterprise that uses EIGRP as its routing protocol. The show ip rou

te command output on router R1 lists the following phrase: "Gateway of last resort is 1.1.1.1 to network 2.0.0.0".Whic h of the following is most likely to have caused this output to occur on R1？（）

A. R1 has been configured with an ip default- network 2.0.0.0 command.

B. R1 has been configured with an ip route 0.0.0.0 0.0.0.0 1.1.1.1 command.

C. R1 has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

D. Another router has been configured with an ip default - network 2.0.0.0 command.

E. Another router has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

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第10题

Refer to the exhibit. EIGRP is configured on all routers in the network. On a basis of the show ip eigrp topology output provided, what conclusion can be derived？（）

Refer to the exhibit. EIGRP is configured on all r