H12-821_V1.0-ENU 試験問題を無料オンラインアクセス

In multicast, the rendezvous point RP is an important PIM router in the network. Whether a static RP or a dynamic RP is set, you can specify which multicast groups the RP provides services for.

• A.TRUE
• B.FALSE

In MSTP, CIST and MSTI are both calculated based on priority vectors. Which of the following descriptions of priority vectors is wrong?

• A.The root switching device ID is used to select the root switching device in CIST.
• B.The internal path cost refers to the path cost from this bridge to the main root.
• C.The Priority in the root switch device ID is the priority of MSTI 0
• D.The domain root ID is used to select the domain root in MSTI.

Which of the following description about VRRP is wrong?

• A.If the Backup router works in non-preemptive mode, if the Master router does not fail, the Backup router will not become the Master router even if it is subsequently configured with a higher priority
• B.If Master already exists, Backup will also preempt
• C.VRRP determines the status of each router in the virtual router based on priority
• D.When two routers with the same priority compete for Master at the same time, compare the size of the interface IP address, and the one with the larger interface address will be elected as the Master

The output of a certain router is shown in the figure. According to the information analysis in the figure, which one of the following descriptions is correct?

• A.If the router's neighbor failure time adopts the default configuration and does not receive the Hello packet from the other party within 6 seconds shown in the figure, the state will become Down
• B.The Hello packet sending interval used by this adjacency is 5 seconds
• C.The network type used by the router must not be broadcast
• D.The reason why there is no DR and BDR in the figure may be that the dr-priority of the peer router is set to 0

BGP routing policy can control the publishing and receiving of routes.

• A.TRUE
• B.FALSE