HCIP-Datacom-Core Technology V1.0

Here you have the best Huawei H12-821 practice exam questions

You have 334 total questions across 67 pages (5 per page)
These questions were last updated on February 18, 2026
This site is not affiliated with or endorsed by Huawei.

Question 1 of 334

To prevent inter-area routing loops, OSPF does not allow advertising routing information between two non-backbone areas and allows advertising routing information only within an area or between the backbone area and a non-backbone area. Therefore, each ABR must be connected to the backbone area.

TRUE

FALSE

Question 2 of 334

Which of the following statements regarding OSPF packets is false?

DD packets contain all LSA information and can be used to periodically synchronize LSOB information between neighbors.

Hello packets are used to discover and maintain OSPF neighbor relationships and also can be used to elect DR and BDR on broadcast and NBMA networks.

Two routers must send Hello packets at the same interval. Otherwise, they cannot establish an OSPF neighbor relationship.

DD packets carry LSA header information to describe link state summary information.

Question 3 of 334

Which of the following statements regarding OSPF neighbor relationship and adjacency is true?

Not all neighbors can establish adjacencies.

Neighbor relationships are selected from adjacencies to exchange routing information.

OSPF routers must establish an adjacency before exchanging information.

Adjacencies are maintained using OSPF DD packet

Question 4 of 334

Which of the following statements regarding different LSA types is false?

LS Update packets contain complete LSA information.

LS Ack packets contain complete LSA information.

LS Request packets contain only LS Type, LS ID, and Advertising Rooter.

DD packets contain only LSA summary information, including LS Type, LS ID, Advertising Router, and LS Sequence Number.

Question 5 of 334

See the network shown in the following figure. Route leaking is configured on R1. In this case, R1 sends a Level-2 LSP to R3 so that R3 can learn routes on the entire network.
Exam H12-821: Question 5 - Image 1

TRUE

FALSE

About the Huawei H12-821 Certification Exam

About the Exam

The Huawei H12-821 (HCIP-Datacom-Core Technology V1.0) validates your knowledge and skills. Passing demonstrates proficiency and can boost your career prospects in the field.

How to Prepare

Work through all 334 practice questions across 67 pages. Focus on understanding the reasoning behind each answer rather than memorizing responses to be ready for any variation on the real exam.

Why Practice Exams?

Practice exams help you familiarize yourself with the question format, manage your time, and reduce anxiety on the test day. Our H12-821 questions are regularly updated to reflect the latest exam objectives.