H12-821_V1.0-ENU

Which of the following statements regarding OSPF route summarization is false?A . OSPF supports two route summarization modes: ABR summarization and ASBR summarization.B . Any router in OSPF can summarize routes.C . Route summarization is the process of summarizing routes with the same prefix into one route and then advertising...

Which of the following statements regarding DR/BDR are false?A . In a broadcast network, DR and BDR must be elected. A broadcast network without a DR or BDR cannot operate normally.B . DR others listen on the multicast address 224.0.0.5.C . All DR others establish neighbor relationships with DR and...

BFD control packets are encapsulated in UDP packets for transmission . What is the destination port number of multi-hop BFD control packets?A . 4784B . 3784C . 5784D . 2784View AnswerAnswer: A

CORRECT TEXT There are two BFD operating modes. In_______mode, the local end sends BFD Control packets at specified intervals, and the remote end checks whether the local end periodically sends BFD Control packets. (Use lowercase letters.) View AnswerAnswer: primary

Which of the following PIM protocol packets have unicast destination addresses.A . Register StopB . BootstrapC . GraftD . AssertView AnswerAnswer: C

Which of the following statements regarding the BGP error display of a router false? A . The error may be caused by the incorrect neighbor address.B . The neighbor address of this router is 10.1.1.5.C . Error Type indicates that the BGP error is caused by the neighbor relationship error.D...

A switch runs MSTP. The configuration is shown in the figure . What is the role of this switch in MSTI 1?A . UncertainB . Root switchC . Non-root switchD . Secondary root switchView AnswerAnswer: A

Which of the following is the default interval at which the DIS on a broadcast IS_IS network sends CSNPs.A . 30B . 3.3C . 10D . 40View AnswerAnswer: C

The traffic limiting policy feature only supports the number of connections initiated by the specified IP or the number of connections received.A . TRUEB . FALSEView AnswerAnswer: B

A monitoring plane usually comprises the monitoring units of main control boards and interface boards. This plane can monitor the system environment independently . Which of the following environment monitoring functions can be provided by the monitoring plane?A . Voltage monitoringB . Temperature monitoringC . Fan controlD . System power-on...