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Huawei H12-891_V1.0-ENU Exam Questions : HCIE-Datacom V1.0
- Exam Code: H12-891_V1.0-ENU
- Exam Name: HCIE-Datacom V1.0
- Updated: Sep 14, 2026
- Q&As: 611 Questions and Answers
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Huawei H12-891_V1.0-ENU Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Network Automation and Programmability | - Network automation tools and APIs - SDN concepts |
| Topic 2: Routing and Switching | - OSPF / IS-IS routing principles - BGP fundamentals and policy control |
| Topic 3: Network Security | - Network attack prevention and isolation - Basic security mechanisms |
| Topic 4: IP Network Fundamentals | - TCP/IP and OSI model - Network architecture and protocols |
| Topic 5: Advanced Networking Technologies | - MPLS and VPN technologies - IPv6 deployment and transition |
Huawei HCIE-Datacom V1.0 Sample Questions:
Question #1
The command to configure VRRP preemption delay is?
- A. vrrp vrid 1 timer delay 20
- B. vrrp vrid 1 preempt-delay 20
- C. vrrp vrid 1 preempt-timer 20
- D. vrrp vrid 1 preempt-mode timer delay 20
Correct Answer: D 🗳️
Question #2
Regarding the mpLS handling mode of TTL, is the following description correct?
- A. Pipe mode. When an IP message passes through the MPLS network, the IPTTL minus 1 is mapped to the WLSTTL field at the incoming node.
- B. The TTL in the MPLS label has the same meaning as the TTL field in the head. TTL prevents mpLS networks from developing bad routing.
- C. Unifore style, when an IP packet passes through the MPLS network, the IPTTL of the incoming node is minus l. The MPLS TTL field is a fixed value.
- D. In MPLSVPI, if you need to hide the structure of the MPLS backbone network, you can use Uniform mode on Ingress for private network messages.
Correct Answer: B 🗳️
Question #3
The following statement about the application of BFD is correct?
- A. The one-arm echo function refers to the detection of the connectivity of the forwarding link through the loopback operation of the BFD packet
- B. BFD single-hop detection refers to the IP connectivity detection of two direct-connected systems
- C. BFD and OSPF linkage is to associate BFD and OSPF, and notify OSPF through BFD's rapid sensing of link failures, thereby speeding up OSPF Response to changes in network topology
- D. BFD multi-hop detection means that BFD can detect arbitrary paths between two systems that may span many hops or overlap in some parts
Correct Answer: A,B,C,D 🗳️
Question #4
The MAC address of a PC is 5489-98FB-65D8. The administrator wants this PC to get the specified P address 1921681.11/24 from the DHCP server So the administrator-configured command should be,
- A. dhcp server static-bind ip-address 1921681. 11 mac- address 5489-98FB-65D8
- B. dhcp server static -bind ip address 1921681.112552552550 mac-address 5489-98FB-65D8
- C. dhcp static-bind ip address 1921681.11 24 mac- address 5489-98FB-65D8
- D. dhcp static-bind ip address 1921681.11 mac- address 5489-98FB-65D8
Correct Answer: A 🗳️
Question #5
Dual-bucket, two-speed is used in traffic governance, where the number of tokens in a C bucket is TC and the number of tokens in a P bucket is TP.
When a message of length B enters, which of the following sentences is correctly described? (Multiple choice questions).
- A. If TP-B>0 and TC-B < 0, the message is marked yellow
- B. If TP-B<0 and TC-B-0, the message is marked in red
- C. If TP-B >O and TC-B > 0, the message is marked as a green
- D. If TP-B~O and TC-B < 0, the message is marked green
Correct Answer: A,B,C 🗳️
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