Huawei HCIP-Datacom - H12-831-ENU Exam Questions [2026]

QUESTION NO: 1
When a large number of IP phones and WLAN APs need to be accessed in the network, which type of switch is generally considered?

A. Switch with STP edge port capability B. Switches with SACG function C. Switches with POE function D. Switch with QoS function

Correct Answer: C

QUESTION NO: 2
Part of the configuration of R1 is as follows. Which statements about OSPF on R1 is correct? (Multiple choice)

A. The OSPF LSDBs of process 1 and process 2 have the same LSA in area 0 B. The routing information of VRF tt will not appear in the routing table of OSPF process 1 C. The OSPF LSDBs of process 1 and process 2 have inconsistent LSAs in their areas D. The routing information of VRF tt will appear in the routing table of OSPF process 1

Correct Answer: B,C

QUESTION NO: 3
Display interface GE0/0/0 once and find that the Total Error count (the total number of error packets at the physical layer of the interface) is not 0. At this time, it can be concluded that the current time error has not disappeared.

A. True B. False

Correct Answer: A

QUESTION NO: 4
Part of the configuration of R1 is as follows. Which of the following statement about IS-IS on R1 is correct? (Multiple choice)

A. Process 1 only contains global routing information B. Process 1 also contains global routing information and the routing information of VRF tt and rr C. The routing information of process 2 and process 3 will be shared D. The routing information of process 2 and process 3 is isolated

Correct Answer: A,D

QUESTION NO: 5
Under the trend of mobility, what new requirements have enterprises put forward to traditional networks? (Multiple choice)

A. Wired and wireless unified management B. Support rapid deployment of mobile applications C. Strict hierarchical networking D. Consistent business experience anytime, anywhere

Correct Answer: A,B,D

QUESTION NO: 6
Why can it be said that the QoS of the network can be improved by increasing the link bandwidth capacity? (Multiple choice)

A. Increased link bandwidth means less delay and jitter B. Increased link bandwidth can support higher traffic C. An increase in link bandwidth can increase the available bandwidth for the control protocol D. The increase in link bandwidth reduces the chance of congestion and thus the number of dropped packets

Correct Answer: A,B,D

QUESTION NO: 7
The end-to-end delay is equal to the sum of all processing delays and queue delays on the path

A. True B. False

Correct Answer: B

QUESTION NO: 8
Which of the following functional descriptions about eSight physical topology monitoring are correct? (Multiple choice)

A. Accurate and visualized monitoring of the network operation status of the entire network B. Graphically display the layout and status of network elements, subnets, and links C. The system shows the network structure of the whole network and the relationship between network entities in business D. The entrance of the entire network monitoring realizes efficient operation and maintenance for customers

Correct Answer: A,B,C,D

QUESTION NO: 9
The routing policy tools that BGP can use mainly include Filter-policy and Route-policy, of which Fiter-policy can only filter routes, and Route-policy can only modify routes.

A. FALSE B. TRUE

Correct Answer: A

QUESTION NO: 10
Which of the following is the least likely cause of the dual-active failure of the VRRP backup group?

A. The Master device sends 1 notification message per second B. The VRRP backup group IDs on both ends are different C. The link that transmits VRRP advertisement packets is faulty D. The low-priority VRRP backup group discards the received VRRP advertisement packets as illegal packets

Correct Answer: A

QUESTION NO: 11
As shown in the figure, a sham link is established between PE1 and PE2 through the LoopBack0 interface. CE2 can learn the route of network segment 192.168.1.0/24 (the direct route on CE1) through the sham link and the backdoor link. If the default configuration is maintained, the cost of the route from CE2 to network segment 192.168.1.0/24 should be ( ). (Please fill in the Arabic numerals directly, without symbols)

A. 4

Correct Answer: A

QUESTION NO: 12
What characteristics must a high-risk operating program have? (Multiple choice)

A. have verification B. can be returned C. to be precise D. Strong operability

Correct Answer: A,B,C,D

QUESTION NO: 13
Assuming that the neighbor relationship between BGP routers has been established successfully, the configuration on R1 is as shown in the figure.

Which router can the routing entry 10.10.10.0/24 published by 1 be delivered to the farthest?

A. R4 B. R1 C. R3 D. R2

Correct Answer: C

QUESTION NO: 14
Which of the following sequences can be matched by the regular expression 100.S? (Multiple choice)

A. 10000 B. 100 C. 1000 D. 1001

Correct Answer: C,D

QUESTION NO: 15
As shown in the figure, in a medium-sized network, in order to improve the reliability of RR, BGP generally deploys double R.

When deploying dual EE, the Cluster IDs of the two RRs are generally set to be the same. What is the reason for this?

A. Prevent the client from receiving too many routes and causing insufficient memory B. Prevent loops C. Prevent suboptimal D. Prevent RR from receiving too many routes and causing insufficient memory

Correct Answer: D