Online Access Free Huawei.H12-821_V1.0.v2025-11-07.q582 Practice Test (Page 97)

Which of the following descriptions about AS attributes in BGP is wrong?

A.AS_Set attribute is an ordered AS_Path attribute

B.AS_Path is a recognized must-follow attribute

C.When the BGP Speaker advertises this route to the IBGP peer, it will not change the AS_Path attribute related to this route

D.In order to avoid routing loops that may be caused by route aggregation, BGP designed the AS_Set attribute

Which function does the switch control plane not include?

A.Business processing

B.Routing operation

C.Traffic Statistics

D.System loading

In the VRP operating system, which of the following options can be configured to enter the view of OSPF area 0? (Multiple choice)

A.[Huawei-ospf-1] area 0

B.[Huawei] ospf area0

C.[Huawei-ospf-1] area0.0.0.0

D.[Huawei-ospf-1] area 0 enable

As shown in the figure, in the network running the RSTP protocol, the original root port of SWC fails and the port is in the Down state.

At this time, which of the following processes will the network go through to achieve stability?

A.The standby port on the SWC becomes the new root port and enters the Forwarding state after going through the Learning state

B.SWC re-elects the root port and directly enters the Forwarding state

C.SWC re-elects the root port and enters the Forwarding state after Learning

D.The standby port on the SWC becomes the new root port and directly enters the Forwarding state

Regarding the LSA age field, which description is correct? (Multiple choice)

A.If the LS age of an LSA reaches LSRefreshTime (30min), the producer of this LSA needs to regenerate an instance of the LSA

B.The unit of LSA age is seconds, and the LS age of LSA in LSDB decreases with time

C.The unit of LSA age is seconds, and the LS age of LSA in LSDB increases with time

D.If the LS age of an LSA reaches LSRefreshTime (30min), any router can regenerate an instance of this LSA for this LSA

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