中国移动IP技术考试

7750SR和Cisco路由器无法建立邻接关系，你猜测原因是由于本地接口MTU值与对端接口MTU值不匹配。请使用下面一条命令确认是否存在错误的MTU（） A、show router ospf statistics B、show router ospf neighbor C、show router ospf status D、show router ospf interface

题目

7750SR和Cisco路由器无法建立邻接关系，你猜测原因是由于本地接口MTU值与对端接口MTU值不匹配。请使用下面一条命令确认是否存在错误的MTU（）

  • A、show router ospf statistics 
  • B、show router ospf neighbor  
  • C、show router ospf status  
  • D、show router ospf interface
参考答案和解析
正确答案:A
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相似问题和答案

第1题：

输入哪条命令可以看到以下信息()。

A.show ip route

B.show ip ospf isa

C.show ip ospf database

D.show ip ospf interface


正确答案：C

第2题：

A network planning diagram shows a large internetwork with many routers. The configurations show that OSPF has been enabled on all interfaces, I P addresses correctly configured, and OSPF workinG.For which of the following cases would you expect a router to create and flood a Type 2 LSA?（）

A. When OSPF is enabled on a LAN interface, and the router is the only router connected to the subnet.

B. When OSPF is enabled on a point - to -point serial link, and that router has both the higher router ID and higher interface IP address on the link.

C. When OSPF is enabled on a Frame Relay point - to - point subinterface, has the lower RID and lower subinterfa ce IP address, and otherwise uses default OSPF configuration on the interface.

D. When OSPF is enabled on a working LAN interface on a router, and the router has been elected BDR.

E. None of the other answers is correct.


参考答案：E

第3题：

要显示路由器的运行配置，下面的路由器命令中，哪一条是正确的?——

A．Router#show running—config

B．Router#show startup—config

C．Router‘#show configuration

D．Router>show running—config


正确答案：A
解析：命令B)是查看启动配置文件；命令C)是查看路由器配置；命令D)是在用户模式下，显示路由器的运行配置应在特权模式下，故选A)。

第4题：

The Dev － 1 and Dev －3 routers are OSPF neighbors over the Ethernet 0／0 connection. Based on the show ip ospf neighbor output from the Dev － 1 and Dev － 3 routers, which statement is true?()

A. Dev - 1 is the DR because it has a lower OSPF router ID

B. Dev - 3 is the DR because it has a higher OSPF router priority

C. Both Dev - 1 and Dev - 3 are using the def ault OSPF router priority

D. Dev - 3 is the DR because it has a lower OSPF router ID

E. Dev - 1 is the DR because it has a higher OSPF router priority


参考答案：E

第5题：

The administrator wants to verify the current state of the OSPF database loading process. Which show command should the administrator use?()

A. show ip ospf [process - id] interface

B. show ip ospf neighbor

C. show ip ospf [process - id]

D. show ip ospf [process - id area - id] database


参考答案：B

第6题：

Which CLI command is used to see the current OSPF link－state database?()

A. show ospf database

B. show ospf neighbor

C. show protocols ospf

D. show ospf link-state


参考答案：A

第7题：

Refer to the exhibit. Which two Cisco IOS commands on R2 would verify its OSPF neighbor relationships?()

A.show ip ospf

B.show ip ospf interface

C.show ip ospf neighbor

D.show ip ospf database

E.show ip ospf statistics

F.show running - config begin router ospf


参考答案：B, C

第8题：

输入哪条命令可以看到以下信息?（ ） LS DataBase Type :Router Ls id :10.1.2.2 Ady rtr :1050 Len :72 Seq :80000008 Cksum (DC) Area Border Router Link count 4 Link id :192.168.2.1 Data :255.255.255.255 Metric:1562 Link id :10.1.2.2 Data :10.1.3.1 Type :Router Metric :1562 Link id :10.1.3.2 Data :255.255.255.255 Type :StubNet Metric :1562

A.show ip route

B.show ip ospf isa

C.show ip ospf database

D.show ip ospf interface


正确答案：C

第9题：

Refer to the exhibit. You have completed an OSPF implementation, and you are verifying OSPF operation. You notice that router A and router B are stuck in the two - way state. From the show ip ospf interface command output, what is the cause of this issue?（）

A. All OSPF implementations must have at le ast one interface in area 0.

B. You are attempting to run in the broadcast mode over an NBMA interface.

C. Both routers are configured to function as a BDR; therefore, there is no DR router.

D. Someone has changed the OSPF router ID; therefore you must clear the OSPF process.

E. The OSPF priority is set to 0 on both routers; therefore neither can become the DR.


参考答案：E

第10题：

Which one of the following privileged EXEC mode IOS show commands will display the state of the OSPF DR／BDR (designated router ／ backup designated router) election process?()

A. TK1# show ip ospf interface

B. TK1# show ip ospf priority

C. TK1# show ospf neighbor detail

D. TK1# show ospf processes

E. TK1# show ospf neighbor state


参考答案：A

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