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

  • Exam Code: H12-821_V1.0-ENU
  • Exam Name: HCIP-Datacom-Core Technology V1.0
  • Updated: Sep 13, 2026     Q & A: 1081 Questions and Answers

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Huawei H12-821_V1.0-ENU Exam Syllabus Topics:

SectionObjectives
Topic 1: Network Management and Automation- Basic Network Automation Concepts
- Network Monitoring and O&M Tools
Topic 2: MPLS and VPN Technologies- L2VPN and L3VPN Deployment
- MPLS Architecture and Label Switching
Topic 3: Network Services and QoS- QoS Mechanisms and Traffic Management
- Network Reliability and Redundancy
Topic 4: IP Network Fundamentals- TCP/IP Model and Networking Principles
- IPv4 and IPv6 Addressing
Topic 5: Routing Protocols- OSPF Implementation and Optimization
- IS-IS Fundamentals
- BGP Basics and Policy Control

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

Question #1

The security zones created by Huawei firewall by default are untrust, dmz, and local ().

Reveal Solution  Discussion  0

Correct Answer:

trust

Question #2

When a router running IS-IS receives multiple instances of an LSP, please arrange the following operations in the order of the LSP processing mechanism.

Reveal Solution  Discussion  0

Correct Answer:

Question #3

IS-IS overload flag refers to the OL field in the LSP message. After setting the overload flag on a device, other devices will not use this device for forwarding when calculating SPF, and will only calculate the direct route of the device.

  • A. FALSE
  • B. TRUE
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #4

Which of the following descriptions about the Cluster List attribute in BGP is wrong?

  • A. When RR receives a BGP route carrying the Cluster_List attribute, and the attribute value contains the Cluster_ID of the cluster, RR considers that there is a loop in this route, so it will ignore the update about this route
  • B. When a route is reflected by the reflector, the Cluster_ID of the RR will be added to the Cluster_List attribute of the route
  • C. The attribute is an optional transition type
  • D. Cluster_List is generated by the route reflector, which consists of a series of Cluster_ID
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #5

When the forwarding table entry is stored in the main control board, after the packet enters the interface board, the query and forwarding of the packet can be completed directly on the interface board, thereby improving the packet forwarding efficiency.

  • A. FALSE
  • B. TRUE
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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