Free Access Huawei.H12-831_V1.0.v2025-10-16.q126 Practice Test (Page 25)

Question 116

Which of the following descriptions about MPLS header TTL are correct? (Multiple choice)

A.In the case of banning Bay TTL, tracert can see the LSR of the MPLS domain that it passes through

B.The processing method of copying the IP TTL value hides the LSR of the MPLS domain and plays a certain security role

C.There are two ways to correct MPLST and TTL. One is to copy the TTL value of the MPLS header when an IP packet enters the MPLS network. The other is to set the TTL of the MPLS header to 255 at the ingress LER.

D.Can prevent infinite loop forwarding of messages

Question 117

On the OSPFv3 network shown in the figure, the LSDB (Link-State Database) of R2 contains ______ Router-LSAs. (Enter only digits.)

Question 118

After configuring the VLAN-based MAC address drift detection function, if the MAC address drifts, you can configure the actions of the interface according to your needs.
Which of the following is not a configurable action?

A.MAC address blocking

B.Send alert

C.Flow filtering

D.Interface blocking

Question 119

Please sort by the cutover execution steps.

A.Cut over business from old equipment to new equipment

B.Install new equipment and configure

C.Perform business inspections on new equipment

D.After the cutover is completed, observe the status of the network on the new device

E.After ensuring the normal business operation of the new equipment, the old equipment goes offline

Question 120

If technology migration on the network affects the services running on the live network, strictly follow the preset operation process and risk control measures during the implementation of the technology migration project. Generally, this type of project is defined as a migration project. Which of the following operations performed on the live network belongs to a non-migration project?

A.Modifying the description of router interfaces in batches

B.Changing the levels of IS-IS Level-1-2 routers to Level-1 in batches

C.Changing the area type of some OSPF routers to the stub area in batches

D.Changing the mode of importing routes to BGP from network mode to import mode in batches

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Question 116

Question 117

Question 118

Question 119

Question 120

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