Huawei HCIP-Datacom-Core Technology V1.0 : H12-821_V1.0 Exam Questions

  • Exam Code: H12-821_V1.0
  • Exam Name: HCIP-Datacom-Core Technology V1.0
  • Updated: May 31, 2026
  • Q&As: 1265 Questions and Answers

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H12-821_V1.0 exam dumps

Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:

1. Which of the following descriptions about RSTP root protection are correct? (Multiple choice)

A) The root protection function will take effect when enabled on the root port.
B) The port with root protection turned on will enter the error-down state after receiving the RST BDPU with a higher priority.
C) After a port with root protection enabled receives a higher-priority RST BPDU, if it does not continue to receive a higher-priority RST BPDU for a period of time, it will return to the normal forwarding state.
D) It is recommended to enable it on the switch at the edge of the network


2. Stateful inspection firewalls use session tables to track active TCP sessions and UDP sessions, and the firewall security policy determines which sessions are established, and packets will only be forwarded if they are associated with a session.

A) TRUE
B) FALSE


3. When the BFD detection intervals at both ends are 30ms and 40ms respectively, which of the following option descriptions is correct?

A) The bfd can be established, take 30ms after negotiation
B) The bfd session can be established, take 40ms after negotiation
C) The bfd session cannot be established
D) The bfd session can be established, and each can be sent at intervals according to its own time


4. As shown in the figure, R1 and R2 have configured the local sending time interval, the local receiving time interval and the local BFD detection multiple.

Which of the following descriptions of the time parameters after RI negotiation are correct? (Multiple choice)

A) The reception time after R1 negotiation is 200 milliseconds
B) The sending time after R1 negotiation is 150 milliseconds
C) The sending time after R1 negotiation is 50 milliseconds
D) The reception time after R1 negotiation is 150 milliseconds


5. As shown in the figure, in the network running the RSTP protocol, the original root port of SWC fails and the port is in the Down state.

At this time, which of the following processes will the network go through to achieve stability?

A) SWC re-elects the root port and directly enters the Forwarding state
B) SWC re-elects the root port and enters the Forwarding state after Learning
C) The standby port on the SWC becomes the new root port and directly enters the Forwarding state
D) The standby port on the SWC becomes the new root port and enters the Forwarding state after going through the Learning state


Solutions:

Question # 1
Answer: C,D
Question # 2
Answer: A
Question # 3
Answer: B
Question # 4
Answer: A,C
Question # 5
Answer: C

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