If all OSPF routers in a single area are configured with the

题目
单选题
If all OSPF routers in a single area are configured with the same priority value,what value dose a router use for the ODPF router ID in the absence of a loopback interface?()
A

the IP address of the first Fast Ethernet interface

B

the IP address of the console management interface

C

the highest IP address among its active interfaces

D

the lowest IP address among its active interfaces

E

the priority value until a loopback interface is configured

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第1题:

Refer to the exhibit. OSPF is configured on all routers in the network. On the basis of the show ip ospf n eighbor output, what prevents R1 from establishing a full adjacency with R2? ()

A. Router R1 will only establish full adjacency with the DR and BDR on broadcast multi- access networks.

B. Router R2 has been elected as a DR for the broadcast multiaccess network in OSPF area 1.

C. Routers R1 and R2 are configured as stub routers for OSPF area 1 and OSPF area 2.

D. Router R1 and R2 are configured for a virtual link between OSPF area 1 and OSPF area 2.

E. The Hello parameters on routers R1 and R2 do not m atch.


参考答案:A

第2题:

Refer to the exhibit. OSPF has been configured on all routers in the network and Area 1 has been configured as a NSSA. Which statement is true about the NSSA Area 1?()

A. Only redistributed RIP routes will appear in Area 1. They will be advertised via t ype 7 LSAs

B. No redistributed routes can appear in Area 1, only summary routes

C. Redistributed RIP and IGRP routes will appear in Area 1. They will be advertised via type 5 LSAs

D. Only redistributed IGRP routes will appear in Area 1. They will be advertised via type 7 LSAs


参考答案:D

第3题:

Which routers must be configured with the same authentication string when configuring OSPFauthentication?()

A. all routers on a link

B. all routers in an area

C. all external OSPF peers

D. all routers in an OSPF domain


参考答案:A

第4题:

What OSPF command, when configured, will include all interfaces into area 0?()

A.network 0.0.0.0 255.255.255.255 area 0

B.network 0.0.0.0 0.0.0.0 area 0

C.network 255.255.255.255 0.0.0.0 area 0

D.network all-interfaces area 0


参考答案:A

第5题:

Refer to the diagram. Which OSPF configuration command is required to configure Area 3 a s atotally stubby area?()

A. On the ABR router ospf 10 area 3 stub

B. On all Area 3 routers router ospf 10 area 3 stub

C. On all Area 3 routers router ospf 10 area 3 stub no - summary

D. On the ABR router ospf 10 area 3 nssa

E. On the ABR rou ter ospf 10 area 3 stub no - summary


参考答案:E

第6题:

Which of the following are characteristics of OSPF areas?()

A. Hierarchical OSPF networks need to be in one area

B. Multiple OSPF areas must connect to area 0

C. Single area OSPF networks must be configured in area 1

D. Areas can be assigned any number from 0 to 63535

E. Area 0 is called the backbone area

F. Each OSPF area need to be configured with a loopback interface


参考答案:B, E

第7题:

OSPF is configured over a Frame Relay network as shown in the exhibit. All PVCs are active.However, R1 and R3 fail to see all OSPF routes in their routing tables. The show ip ospf neighbor command executed on R2 shows the state of t he neighbors. What should be done to fix the problem? ()

A. The ip ospf network broadcast command should be configured on each Frame Relay interface

B. The ip ospf network non -broadcast command should be configured on each Frame Relay interface

C. Th e ip ospf priority value on the spoke routers should be set to 0

D. The ip ospf priority value on the hub router should be set to 0

E. The neighbor command should be configured under the OSPF routing process on all routers


参考答案:C

第8题:

Refer to the exhibit. OSPF is configured on all routers in the network. Area 5 is configured as an NSSA areA. The RIPv2 routes are redistributed into the OSPF domain on router R5. What two types of LSAs will be originated by router R5?()

A. type 1 Router LSA

B. type 2 Network LSA

C. type 3 Network Summary LSA

D. type 4 ASBR Summary LSA

E. type 5 AS External LSA

F. type 7 NSSA External LSA


参考答案:A, F

第9题:

If all OSPF routers in a single area are configured with the same priority value,what value dose a router use for the ODPF router ID in the absence of a loopback interface?()

A. the IP address of the first Fast Ethernet interface

B. the IP address of the console management interface

C. the highest IP address among its active interfaces

D. the lowest IP address among its active interfaces

E. the priority value until a loopback interface is configured


参考答案:C

第10题:

OSPF routing uses the concept of areas. What are the characteristics of OSPF areas?()

A. Each OSPF area requires a loopback interface to be configured.

B. Areas may be assigned any number from 0 to 65535.

C. Area 0 is called the backbone area.

D. Hierarchical OSPF networks do not require multiple areas.

E. Multiple OSPF areas must connect to area 0.

F. Single area OSPF networks must be configured in area 1.


参考答案:B, C, E

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