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

  • Exam Code: H12-821_V1.0
  • Exam Name: HCIP-Datacom-Core Technology V1.0
  • Updated: Jul 30, 2026     Q & A: 385 Questions and Answers

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Huawei H12-821_V1.0 Exam Syllabus Topics:

SectionWeightObjectives
Network Reliability8%- Redundancy and failover mechanisms
Network Service and Management2%- Network management basics
Network Security9%- ACL and basic security mechanisms
BGP17%- BGP path selection
- BGP policy and attributes
Network Solution2%- Integrated network design scenarios
Multicast9%- IGMP and PIM concepts
IS-IS8%- IS-IS protocol fundamentals
IPv63%- IPv6 addressing and routing
Switching Technologies7%- VLAN and STP fundamentals
OSPF16%- OSPF core concepts
- OSPF areas and LSDB
Routing and Traffic Control10%- Policy-based routing
- Traffic engineering basics
Large-scale WLAN Architecture6%- Enterprise WLAN deployment basics
Routing Fundamentals3%- Network basics and routing principles

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

1. A campus network uses OSPF for network communication. The display ospf peer command is run on a router, and the command output is as follows:
vbnet
Copy
Edit
< R2 > display ospf peer
OSPF Process 1 with Router ID 10.0.2.2
Area 0.0.0.0 interface 10.0.235.2 (GigabitEthernet0/0/1) ' s neighbors
Router ID: 10.0.5.5 Address: 10.0.235.5
State: Full Mode: Nbr is Master Priority: 1
DR: 10.0.235.5 BDR: 10.0.235.3 MTU: 0
Dead timer due in 40 sec
Area 0.0.0.0 interface 10.0.24.2 (Serial1/0/1) ' s neighbors
Router ID: 10.0.4.4 Address: 10.0.24.4
State: Full Mode: Nbr is Master Priority: 1
DR: None BDR: None MTU: 0
Dead timer due in 35 sec
Which of the following statements are true about the device?

A) The DR/BDR election fails on the network where R2 and its neighbor 10.0.4.4 reside.
B) The IP address of the DR on the network where R2 and its neighbor 10.0.5.5 reside is 10.0.235.5.
C) Router IDs of the two OSPF neighbors of R2 are 10.0.5.5 and 10.0.4.4.
D) R2 has established adjacencies with 10.0.5.5 and 10.0.4.4.


2. On a network, some switches are enabled with RSTP and some switches are enabled with STP. What will happen?

A) A Huawei switch changes from RSTP to STP. After the STP-enabled switch is removed from the network, the RSTP-enabled switch can be moved back to the RSTP mode.
B) STP and RSTP are compatible with each other, but the rapid convergence of RSTP is unavailable.
C) A Huawei switch changes its mode from STP to RSTP. After the RSTP-enabled switch is removed from the network, the STP-enabled switch can be moved back to the RSTP mode.
D) STP and RSTP calculation are performed independently.


3. What is the correct procedure for a VLAN pool to assign terminals to VLANs.


4. A company has a stack consisting of three switches that are running properly. The master switch restarts due to a fault. Given this, which of the following statements are true?

A) After the original master switch restarts, it becomes the new master switch.
B) Before the restart of the original master switch is complete, the original standby switch becomes the new master switch.
C) After the original master switch restarts, the original standby switch becomes a new slave switch.
D) Before the restart of the original master switch is complete, the original slave switch is specified as the new standby switch.


5. A large shopping mall configures a VLAN pool to prevent network performance deterioration caused by potentially large broadcast domains. A network engineer runs the display vlan pool name STA command to check information about the VLAN pool. The following command output is displayed:
< AC > display vlan pool name STA Name : STA Total : 2 Assignment: hash Threshold Notify Count: 3 Threshold Notify time(min): 3 VLAN ID : 2 4 Which of the following statements are true?

A) The total number of VLAN pools is 2.
B) The VLANs with the IDs of 2 and 4 are added to the VLAN pool.
C) The VLAN pool uses the even VLAN assignment algorithm.
D) The name of the VLAN pool is STA.


Solutions:

Question # 1
Answer: B,C,D
Question # 2
Answer: A,B
Question # 3
Answer: Only visible for members
Question # 4
Answer: A,B
Question # 5
Answer: B,D

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