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Which message type is constructed and sent from an MSDP router to its MSDP peers when it  receives a PIM register message （knowing that the MSDP router is also configured as an RP for  the PIM domain）？（）A、Source-Active MessageB、PIM JoinC、PIM HelloD、MSDP R

题目

Which message type is constructed and sent from an MSDP router to its MSDP peers when it  receives a PIM register message （knowing that the MSDP router is also configured as an RP for  the PIM domain）？（）

  • A、Source-Active Message
  • B、PIM Join
  • C、PIM Hello
  • D、MSDP Register
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相似问题和答案

第1题：

Which three statements are true about IP multicast configuration?()

A. PIM sparse - dense mode and PIM dense mode require an RP on the network.

B. PIM sparse mode and PIM dense mode require an RP on the network.

C. PIM sparse mode interfaces are always added to the multicast routing table in a router.

D. PIM sparse mode and PIM sparse - dense mode require an RP on the network.

E. PIM dense mode interfaces are always added to the multicast routing table in a router.

F. PIM sparse - dense mode acts as PIM dense mode if an RP is not known.


参考答案：D, E, F

第2题：

组播部署正确的是（）

  • A、网络内部采用PIM-SM协议，通过MBGP和MSDP支持跨域组播
  • B、选择anycastRP方式实现冗余和负载分担的目的
  • C、由于信源和接收者可能注册到了不同的RP上，因此多台RP间需要交换可用信源的SA信息
  • D、anycastRP用相同的IP地址建立MSDP

正确答案:A,B,D

第3题：

Which two steps are needed when configuring multiple RPs using MSDP within a single PIM domain? ()

A. Configure a non-unique address on the loopback interface for use by the PIM RP.

B. Configure MSDP with the unique address (router ID) as the local address of the peer.

C. Configure MSDP with the non-unique address (router ID) as the local address of the peer.

D. Configure a unique address on the loopback interface, used as the PIM RP.


参考答案：A, B

第4题：

2012 Feb 23 23：00：08.676710 pim： [16132] （default-base） Received unauthenticated hello- message from 10.1.1.2 on Ethernet1/18， message discarded 2012 Feb 23 23：00：12.528763 pim： [16132] （default-base） Send Hello with AH on Ethernet1/18 from 10.1.1.1， holdtimE. 105 secs，dr-priority：1  You are troubleshooting a PIM neighbor adjacency that is not coming up. You issued the command show ip pim neighbor e1/18 and confirmed there is no PIM neighbor on the interface. What is the problem based on the debug output？（）

  • A、 The peer router 10.1.1.2 has PIM disabled on its interface connecting to Ethernet1/18.
  • B、 The peer router 10.1.1.2 has the wrong PIM password configured on its interface connecting to Ethernet1/18.
  • C、 The local router 10.1.1.1 has the wrong PIM password configured on Ethernet1/18.
  • D、 The peer router 10.1.1.2 does not have PIM hello authentication enabled on its interface connecting to Ethernet1/18.
  • E、 The local router 10.1.1.1 does not have PIM hello authentication enabled for Ethernet1/18.

正确答案:D

第5题：

Which two statements are true about RPF checks in MSDP（Multicast Source Discovery Protocol）？（）

  • A、It prevents message looping，Session Advertisement（SA）messages must be RPF checked
  • B、RPF check should be done against the route to the Rendez-vous Point of the corresponding PIM-SM domain，which originated the SA
  • C、RPF checking Session Advertisement（SA）messages will cause message looping
  • D、RPF check should be done against the route to the source S of the corresponding PIM-SM domain

正确答案:A,B

第6题：

WhatisthebenefitofusingAnycastRPviaRFC4610forIPmulticastRPredundancy?()

A.ImprovesconvergenceofthemulticastnetworkduetoenhancedRPFchecks

B.SimplifiesthenumberofcontrolplaneprotocolsoverotherRPredundancymethods

C.EliminatestheuseofProtocolIndependentMulticast（PIM）inthetopology

D.IncreasestheadministrativedistancesinMulticastSourceDiscoveryProtocol（MSDP）configuration


参考答案：B

第7题：

Choose two commands that are required to enable multicast on a router， when it is known that thereceivers use a specific functionality of IGMPv3.（）

  • A、ip pim rp-address
  • B、ip pim ssm
  • C、ip pim sparse-mode
  • D、ip pim passive

正确答案:B,C

第8题：

下列哪种组播路由协议可以配合MSDP实现跨域组播()。

A.DVMRP

B.MOSPF

C.PIM DM

D.PIM SM


答案D

第9题：

In PIM-SM operations， the first router connected to the multicast source sends the Register message towhich device？（）

  • A、Multicast source
  • B、Multicast receiver
  • C、RP
  • D、RP mapping agent
  • E、Designated Router （DR）

正确答案:C

第10题：

The ip pim autorp listener command is used to do which of these？（）

  • A、enable a Cisco router to "passively" listen to Auto-RP packets without the router actively sending or forwarding any of the packets
  • B、allow Auto-RP packets in groups 224.0.1.39 and 224.0.1.40 to be flooded in dense mode out interfaces configured with the ip pim sparse-mode command
  • C、enable the use of Auto-RP on a router
  • D、configure the router as an Auto-RP mapping agent

正确答案:B

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