Free Access Huawei.H12-831_V1.0-ENU.v2022-01-20.q92 Practice Test (Page 2)

Question 1

Regarding the MPLS forwarding process, which description of the ingress node forwarding is correct? (Multiple choice)

A.Find the corresponding NHLFE entry according to the Tunnel ID of the ILM table, and associate the LFlB entry with the NHLFE entry

B.Check the NHLFE entry, you can get the outgoing interface, next hop, outgoing label, and label operation type. The label operation type is Push

C.Press the obtained label in the IP packet, and process EXP according to the QoS policy, and process L at the same time, and then send the encapsulated MPLS packet to the next hop

D.After receiving the data packet, the Ingress node will first check the ILM table to find the Tunnel ID

Question 2

As shown in the figure, the cost value of the link that all interfaces of the router enable OSPF is identified in the figure. Loogback0 interfect of R2 is advertised in area 0. In area 1, both R2 and R3 will be transmitted in the form of Typae3 LSA 10.0.2.2/32 routing information.

A.FALSE

B.TRUE

Question 3

What is the Router-ID of OSPFv3?

A.64-bit value

B.128-bit value

C.32-bit value

D.100-bit value

Question 4

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

A.Can prevent infinite loop forwarding of messages

B.When the TTL of the shell is disabled, tracert can see the LSR of the MPLS domain that it passes through

C.There are two ways to deal with MPLST correctly 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.The processing method of copying the IP TTL value hides the LSR of the MPLS domain and plays a certain security role

Question 5

Regarding the cause of the dual-master failure of the VRRP backup group, which of the following is the most unlikely?

A.Master device sends 1 notification message per second

B.The link that transmits the VRRP notification message is faulty

C.The low-priority VRRP backup group discards the received VRRP notification packets as illegal packets

D.The VRRP backup group IDs on both ends are different

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