Huawei HCIA-Datacom V1.0 - H12-811-ENU Exam Questions [2026]

QUESTION NO: 1
The output information of a certain router is shown in the figure. Which of the following statements are correct? () (Multiple Choice Questions)

A. The Router ID of the router is 10.0.2.2. B. The Router ID of the router is 10.0.1.1 C. This router is DR D. The interface address of this router is 10.0.12.2

Correct Answer: A,C,D

QUESTION NO: 2
Which statement about the 0SPF protocol DR is correct? ()

A. An interface priority is 0, then the interface cannot be a DR B. DR must be the highest priority device in the network C. Router ID, the larger the value, the more preferred it is to be elected as DR D. DR election is preemptive

Correct Answer: A

QUESTION NO: 3
In the network shown in the figure below, the host has an ARP cache, and host A sends a packet to host B. What are the destination MAC and destination IP of this packet? () (Single-choice question)

A. MAC-C.10.0.12.2 B. MAC-B.11.0.12.1 C. MAC-A.11.0.12.1 D. MAC-C,11.0.12.1

Correct Answer: D

QUESTION NO: 4
Which of the following fields is not included in the HELL0 packet of the OSPF protocol? ().

A. Neighbor B. Network Mask C. Sysname D. HelloInterval

Correct Answer: C

QUESTION NO: 5
The network management system can only view the operating status of the device through the SNMP protocol, but cannot issue the configuration ()

A. True B. False

Correct Answer: B

QUESTION NO: 6
What is the total length of port ID in Spanning Tree Protocol? ()

A. 16 B. 8 C. 2 D. 4

Correct Answer: A

QUESTION NO: 7
The network shown in the figure below. From a security perspective, router A refuses to receive OSPF packets and ICMP packets received from interface G0/0/1. Which of the following commands can achieve this requirement? () (Multiple Choice Questions)

A. acl number 3000
Rule 5 deny 89
Rule 10 deny 1
#
Interface GigabitEtherneto/0/1Traffic-filter inbound acl 3000# B. acl number 2000
Rule 5 deny 89
Rule 10 deny 1
#
Interface GigabitEthernet0/0/1Traffic-filtet inbound acl 2000# C. acl number 3000
Rule 5 deny ospf
Rule 10 deny icmp
#
Interface GigabitEthernet0/0/1Traffic-filtet inbound acl 3000# D. acl number 3000
Rule 5 deny 89
Rule 10 deny icmp
#
Interface GigabitEthernet0/0/1Traffic-filter inbound acl 3000#

Correct Answer: A,C,D

QUESTION NO: 8
The following is the statement about the election of active ports in link aggregation LACP mode.
the correct one is? ()

A. The interface priority is compared first, and the better one cannot be judged to continue to compare the interface number, the smaller the better. B. Only compare interface priority C. Compare device priority D. Only compare interface numbers

Correct Answer: A

QUESTION NO: 9
The two switches shown in the figure below have both enabled the STP protocol, which port will eventually be in the Blocking state? ()

A. G0/0/2 terminal C of STB B. G0/0/2 port of STA C. G0/0/3 port of STA D. STB's G0/0/3 port

Correct Answer: D