A router has EIGRP configured as the only routing protocol.

题目
单选题
A router has EIGRP configured as the only routing protocol. How does EIGRP respond if there is no feasible successor route to a destination network and the successor route fails?()
A

It immediately sends its entire routing table to its neighbors.

B

EIGRP sends a Hello packet to the DR to inform it of the route failure.

C

It automatically forwards traffic to a fallback default route until a successor route is found.

D

It sends queries out to neighbors until a new successor route is found.

E

It places the route in holddown until LSA updates inform it of a new route to the network.

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相似问题和答案

第1题:

Refer to the exhibit. EIGRP has been configured on routers R1 and R2. However, R1 does not show R2 as a neighbor and does not accept routing updates from R2.What could be the cause of the problem?()

A. The no auto - summary command has not been issued under the EIGRP process on both routers.

B. Interface E0 on router R1 has not been configured with a secondary IP address of 10.1.2.1/24.

C. EIGRP cannot exchange routing updates with a neighbor‘s router interface that is configured with tw o IP addresses.

D. EIGRP cannot form neighbor relationship and exchange routing updates with a secondary address.


参考答案:D

第2题:

A company has a small network,consisting of a single switch and a single router.The switch has been configured with two vlans,and route-on-a-stick is being configured on the router for inter-vlan routing.A trunk is configured to connect the switch to the router.What is the minimum number of router subinterfaces that are required for all the vlans to communicate?()

A. one

B. three

C. two

D. zero


参考答案:C

第3题:

Refer to the exhibit. EIGRP has been configured on router D. Router C is performing mutual redistribution between EI GRP and OSPF. While verifying that the redistribution is functioning properly, you discover that while router C has all of the EIGRP routes in its routing table, router A does not have any routes from the EIGRP domain. What on router C may be the cause o f the problem?()

A. The no auto - summary command needs to be added under router eigrp 1

B. The subnets keyword was not included in the redistribute command under router ospf 1

C. The metric specified for the redistributed EIGRP routes is too large; m aking the EIGRP routes unreachable by router A

D. The default - information originate command needs to be added under router ospf 1

E. The administrative distance of either OSPF or EIGRP must be changed so that EIGRP has a higher administrative distanc e than OSPF


参考答案:B

第4题:

A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router,as the routing protocol for the network.Which statement about thisnetwork is true?()

  • A、For the two vlans to communicate,a network statement for the trunk interface needs to be added to the  OSPF configuration.
  • B、For the two vlans to communicate, a network statement for each subinterface needs to be  added  to the OSPF configuration.
  • C、Direct inter-vlan communication does not require OSPF
  • D、OSPF cannot be used if router-on-a-stick is configured on the router

正确答案:C

第5题:

When EIGRP is used as the PE-CE routing protocol which of these statements is correct?()

  • A、EIGRP can be used only as the PE-CE routing protocol if the PE and CE routers are in the same AS
  • B、Other EIGRP AS routes are automatically advertised to the CE router and do not require a redistribution configuration command to be configured
  • C、Unlike other routing protocols that are used between PE and CE routers, EIGRP supports backdoor links
  • D、Configure of the VPN is only required on the PE router

正确答案:D

第6题:

What is the most likely reason for the dispartly between the actual network numbers at the branches and the routes in the routing table on Gateway-Router?()

A. Branch-Router2 is configured to send both RIPv1 and RIPv2 updates.

B. Gateway-Router is configured to only receive RIPv2 updates.

C. Gateway-router is configured to receive only RIPv1 updates.

D. Branch-Router1 is configured to only send RIPv1 updates


参考答案:D

第7题:

Which of these statements accurately identifies how Unicast Reverse Path Forwarding can be employed to prevent the use of malformed or forged IP sources addresses?()

  • A、It is applied only on the input interface of a router.
  • B、It is applied only on the output interface of a router.
  • C、It can be configured either on the input or output interface of a router.
  • D、It cannot be configured on a router interface.
  • E、It is configured under any routing protocol process.

正确答案:A

第8题:

A new network has been configured using OSPF as the routing protocol. With which network type will OSPF establish router adjacencies but not perform the DR/BDR election process?()

A. point-to-point

B. Backbone area 0

C. Broadcast multicast

D. Non-broadcast multi-access

E. The DR/BDR process is done for all interface types


参考答案:A

第9题:

Half of your network uses RIPv2 and the other half runs OSPF. The networks do not communicate with each other. Which two of these factors describe the impact of activating EIGRP over each separate part? ()

  • A、EIGRP will not be accepted when configured on the actual RIPv2 routers.
  • B、OSPF will no longer be used in the routing table, because you only have EIGRP internal routes running.
  • C、OSPF will no longer be used in the routing table, because you only have EIGRP external routes running.
  • D、RIPv2 will populate its RIP database but not its routing table, because you only have EIGRP external routes running.
  • E、RIPv2 will populate its RIP database but not its routing table, because you only have EIGRP internal routes running.
  • F、OSPF database will have RIPv2 routes.

正确答案:B,E

第10题:

How will router A choose a path to the 10.1.2.0/24 network when different routing protocols are configured (Choose three.)()。

  • A、If RIPv2 is the routing protocol, only the path AD will be installed in the routing table by default.
  • B、If RIPv2 is the routing protocol, the equal cost paths ABD and ACD will be installed in the routing table by default.
  • C、If EIGRP is the routing protocol, only the path AD will be installed in the routing table by default.
  • D、If EIGRP is the routing protocol, the equal cost paths ABD and ACD will be installed in the routing table by default.
  • E、If EIGRP and OSPF are both running on the network, the EIGRP paths will be installed in the routing table.
  • F、If EIGRP and OSPF are both running on the network, the OSPF paths will be installed in the routing table.

正确答案:A,D,E

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