Free Huawei H12-821_V1.0 Exam Questions

Become Huawei Certified with updated H12-821_V1.0 exam questions and correct answers

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Total 332 Questions | Updated On: Jun 16, 2026

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Question 1

On an OSPF network, LSDBs are used to store LSAs. Common LSAs include router LSAs and network LSAs. Which of the following items is not included in the 3-tuple that is used to uniquely identify an LSA?

A : LS Sequence Number

B : Link State ID

C : Advertising Router

D : LSType

Answer: A

Question 2

The IP prefix list configuration on a Huawei router is shown below. Which of the following routes can match this IP prefix list?bashCopy[huawei] ip ip-prefix test index 10 permit 10.0.0.0 8 less-equal 32

A : 10.1.1.1/32

B : 10.1.1.0/6

C : 10.1.1.0/24

D : 10.0.0.0/16

Answer: A,C,D

Question 3

See the network shown in the following figure. R1 and R2 run IS-IS and establish an adjacency. IS-IS is enabled on Loopback0 of R2 but disabled on Loopback3 of R2. The configurations shown in the figure are performed in the IS-IS process of R2. Which of the following statements are true?

A : The routing table of R1 contains the route 10.0.2.3/32.

B : The routing table of R1 does not contain the route 10.0.2.3/32.

C : The routing table of R1 does not contain the routes 10.0.2.2/32 and 10.0.2.3/32.

D : The routing table of R1 contains the route 10.0.2.2/32.

Answer: B,D

Question 4

Which of the following statements is false, based on the following IGMP information on an interface of RTA? XC

A : The interval for sending group-specific Query messages is 60s.

B : The maximum time for response to Query messages is 10s.

C : The IP address of the interface is 192.168.1.1.

D : The IGMP version is IGMPV2.

Answer: A

Question 5

Hackers often obtain the login permissions of system administrators through various attacks. Which of the following measures can be taken to enhance the security of administrator accounts?(Select all that apply)

A : Periodically check whether unnecessary administrator accounts exist in the system. If such accounts exist, delete them to reduce the attack surface.

B : Encrypt passwords before transferring them. Whenever possible, transfer passwords by email.

C : Assign exclusive accounts for administrators with different maintenance roles to avoid account sharing.

D : To ensure security and make the password easier to remember, you can set the password to be valid for a long time.

Answer: A,C

Page: 1 / 67

Total 332 Questions | Updated On: Jun 16, 2026

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