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Huawei H12-891_V1.0-ENU Exam Syllabus Topics:

Huawei HCIE-Datacom V1.0 Sample Questions:

1. To achieve an on-machine migration in the BGP EVPN distributed gateway scenario, which of the following messages is required?

A) Type2
B) Type5
C) Type3
D) Typel
E) Type4

2. The following description of the BGP route reflector is? (Multiple choice questions).

A) The route learned from the client, all non-clients and clients published to this RR.
B) A network of bones is divided into multiple reflection clusters, each of which configures the other RRs as non-clients, and establishes an IBGP full connection between the RRs.
C) The Originator_ID attribute is generated by the Route Reflector (RR) for inter-cluster ring protection.
D) Cluster_List is an optional non-staging property for ring protection within the cluster.

3. The following description of the LDPLSP establishment process is correct?

A) 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.
B) 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.
C) 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.
D) 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.

4. Which of the following messages does the BGP protocol support?

A) Update
B) Open
C) Hello
D) Keepalive

5. Although the STP protocol can solve the loop problem, it affects the quality of user communication due to the slow convergence of the network topology. RSTP has made many improvements to STP, which of the following is not an improvement of RSTP to STP?

A) In addition to the 3 port states, RSTP vice adds 2 new port roles
B) RSTP port state specification is divided according to whether the port forwards user traffic and learns the MAC address, reducing the original 5 port states to 3
C) If a port does not receive a configuration BPDU sent by the upstream device for 4 consecutive Hello Time, the device considers the negotiation with this neighbor to fail
D) Non-root switches running RSTP send configuration BPDUs at intervals specified by Hello Timer, a behavior that is entirely autonomous for each device

Solutions: