Free Access Huawei.H12-891_V1.0.v2025-08-12.q170 Practice Test (Page 19)

Question 86

What does RT do in MPLS VPN? Multiple choice questions).

A.Allows the peer PE to decide which VPNv4 routes to import into a particular VRF

B.Allows the peer CE to decide which VPNv4 routes not to import into a particular VRF

C.Allows the peer CE to decide which VPNv4 routes to import into a particular VRF

D.Allows peer PE to decide which VPNv4 routes not to import into a particular VRF

Question 87

The IS-IS Level-1 neighbor relationship is not established between R3 and R4. Referring to the following information, what is the possible cause?

A.The IIH authentication between R3 and R1 fails.

B.The IS-IS levels of R3 and R4 do not match.

C.The circuit types of the interfaces connecting R3 and R4 do not match.

D.The area IDs of R3 and R4 are different.

Question 88

The following description of the LDPLSP establishment process is correct?

A.In the DoD mode of label publishing, for a specific FEC, the LSR does not need to obtain a label request message from upstream to distribute the label.

B.The process of establishing a LSP is actually to bind the FEC to the tag and advertise this binding to the LSP upstream LSR process.

C.When a network topology change causes the next hop neighbor to change, the free label keep method is used. LSR can quickly rebuild the LSP by directly using the labels sent by the original non-optimal next-hop neighbor. Liberal needs more memory and tag space.

D.By default, LSRs are for the same FEC, and the received tag mappings can only come from the optimal next hop, not from the non-optimal next hop.

Question 89

According to the following information displayed on a router, which of the following are the causes of the failure in establishing an OSPF adjacency relationship?
OSPF error statistics:
1: Hello timer mismatch
0: Netmask mismatch
0: Bad checksum
0: Bad authentication type
0: Unknown neighbor
0: Extern option mismatch

A.Hello packets are sent at different intervals.

B.The area IDs are inconsistent.

C.The IP address masks of the interfaces are inconsistent.

D.The area types are inconsistent.

Question 90

What messages does an NMS (Network Management Station) running SNMPV1 send to the agent?

A.Get,Set ? GetBulk

B.Get,Set,Getnext ? GetBulk

C.? Trap

D.Get, Set ?Getnext

E.Trap,Get ? Set

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Question 86

Question 87

Question 88

Question 89

Question 90

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