Download Huawei : H12-891_V1.0-ENU Questions & Answers as PDF & Test Software
Updated: Jun 06, 2026
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Huawei HCIE-Datacom V1.0 Sample Questions:
1. As shown in the figure, a company wants to achieve secure mutual access between the head office and branches through MPLSVPN, and at the same time requires that the IPN traffic of the branch bank must be forwarded through the head office to achieve traffic monitoring
A) An MP-IBGP peer relationship is established between Spoke-PE and THE VPN routing information is exchanged.
B) When Hub-CE passes routing information with Hub-PE, you need to configure a route on Hub-PE that allows receiving AS numbers to be repeated 1 time to receive routes published by Hub-CE
C) VPN routing information can be exchanged between CE and PE using BGP messages
D) Between Hub-CE and Hub-PE, and between Spoke-PE and Plan-CE, routing information can be exchanged using the OSPF protocol
2. In MPLSVPN, in order to distinguish between IPv4 prefixes that use the same address space, the RD value is added to the IPv4 address, and the following options are described correctly as?
A) RD is encapsulated in the Update message as an extended community attribute of BGP during delivery
B) After the PE receives an IPv4 route from CE, it adds an RD to the route to IPv4 that translates to a globally unique VPN-IPv4 route and publishes it on the public network
C) RD can be used to control the publication of VPN routing information
D) On a PE device, each VPN instance corresponds to an RD value, and the RD value must be unique on the same PE device
3. Regarding the sliding window of TCP, what are the following descriptions that are enough to be wrong? (Multiple choice question)
A) Sliding window size can only be increased or remain unchanged
B) The sender declares the initial window size
C) The sender does not need to transmit messages of full window size
D) The receiver needs to acknowledge the sender's packet
E) The TCP sliding window allows multiple packets to be sent before an acknowledgment is received
F) After the retransmission timer times out, the sender has not received an acknowledgment and will retransmit unacknowledged data
4. To build a loopless Layer 2 network, which of the following schemes is optimal? (Single Choice)
A) Stacking + Link Aggregation
B) TRILL+MSTP
C) ??+MSTP
D) Link Collection + MSTP
5. CORRECT TEXT
If you need to configure routing policies on one router.
Which of the following parameters does an administrator use to route when deploying a routing policy? (Multiple select).
A) Application
B) Identification of a specific terminal system
C) Protocol
D) Size of the packet
E) Throughput
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: D | Question # 3 Answer: A,B | Question # 4 Answer: A | Question # 5 Answer: A,B,C,D |
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