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Huawei H12-821_V1.0 : 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: Oct 21, 2026

Q & A: 406 Questions and Answers

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Huawei H12-821_V1.0 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: OSPF16%- OSPF core concepts
- OSPF areas and LSDB
Topic 2: Routing Fundamentals3%- Network basics and routing principles
Topic 3: Multicast9%- IGMP and PIM concepts
Topic 4: IS-IS8%- IS-IS protocol fundamentals
Topic 5: Network Solution2%- Integrated network design scenarios
Topic 6: Large-scale WLAN Architecture6%- Enterprise WLAN deployment basics
Topic 7: Routing and Traffic Control10%- Traffic engineering basics
- Policy-based routing
Topic 8: BGP17%- BGP policy and attributes
- BGP path selection
Topic 9: IPv63%- IPv6 addressing and routing
Topic 10: Switching Technologies7%- VLAN and STP fundamentals
Topic 11: Network Service and Management2%- Network management basics
Topic 12: Network Reliability8%- Redundancy and failover mechanisms
Topic 13: Network Security9%- ACL and basic security mechanisms

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

Question #1
On the network shown in the figure, R1 advertises a BGP route to an EBGP peer. Which of the following statements are true about this process?
Exhibit:

BGP topology showing R1 in AS 100 advertising route 10.0.1.0/24 to R2 in AS 200, with R3 as an IBGP neighbor

A. R1 sends only incrementally updated routes.
B. When R2 receives the route and advertises it to R3, R2 retains the Next_Hop attribute of the route.
C. The Next_Hop attribute of the route is the source address of the UDP connection.
D. The route carries the Origin attribute.


Question #2
On an IS-IS network, all routers generate LSPs. Which of the following types of information is not contained in the LSPs generated by pseudonodes?

A. Neighbor information
B. Interface information
C. Information about supported network protocols
D. Route information


Question #3
Four routers run IS-IS and have established adjacencies. The area IDs and router levels are marked in the following figure. R1 and R2 are connected through a PPP link, and R3 is the DIS. Which of the following statements are true?

A. R2 sends an LSP to R3 and R4 in unicast mode.
B. R3 periodically sends CSNPs to implement Level-2 LSDB synchronization.
C. If R2 sends a Level-2 LSP, R3 needs to send a PSNP for acknowledgment.
D. If R1 sends an LSP, R2 needs to send a PSNP for acknowledgment.


Question #4
After VRRP election is complete, a device assumes the Master or Backup role. Which of the following events can be processed only by the device of the Master role?

A. Periodically send VRRP Advertisement packets.
B. Respond to the ARP request destined for the virtual IP address.
C. Respond to VRRP Advertisement packets with lower priorities.
D. Forward IP packets destined for a virtual MAC address.


Question #5
During the initial formation of a spanning tree in STP, all STP switches consider themselves as the root bridge. Therefore, by default, they generate and send configuration BPDUs periodically (every______seconds). (Enter only digits.)


Solutions:

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

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