Study with Huawei : H12-821_V1.0 Exam Torrent as your best preparation materials
Last Updated: Oct 05, 2026
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Huawei H12-821_V1.0 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Network Security | - Security Technologies
|
| Topic 2: OSPF | - OSPF Fundamentals
|
| Topic 3: Routing Basics | - IP Routing Fundamentals
|
| Topic 4: Ethernet Switching Technology | - Switching Fundamentals
|
| Topic 5: Multicast | - IP Multicast Technologies
|
| Topic 6: WLAN | - Wireless Networking
|
| Topic 7: Network Reliability | - Reliability Technologies
|
| Topic 8: BGP | - BGP Technologies
|
| Topic 9: IS-IS | - IS-IS Fundamentals
|
| Topic 10: Network Service and Management | - O&M Technologies
|
| Topic 11: Routing and Traffic Control | - Traffic Management
|
| Topic 12: IPv6 | - IPv6 Fundamentals
|
| Topic 13: Network Solutions | - Enterprise Network Solutions
|
Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:
Hackers often obtain the login permissions of system administrators through various attacks.
Which of the following measures can be taken to enhance the security of administrator accounts?
(Select all that apply)
- A. Encrypt passwords before transferring them. Whenever possible, transfer passwords by email.
- B. To ensure security and make the password easier to remember, you can set the password to be valid for a long time.
- C. Assign exclusive accounts for administrators with different maintenance roles to avoid account sharing.
- D. Periodically check whether unnecessary administrator accounts exist in the system. If such accounts exist, delete them to reduce the attack surface.
Correct Answer: C,D 🗳️
Explanation: Only visible for SurePassExams members. You can sign-up / login (it's free).
When receiving a packet, a router matches the packet against ACL rules . The ACL matching result is either Matched or Unmatched . If the matching result is Unmatched , which of the following are possible causes?
- A. No ACL is configured on the device.
- B. The packet matches an ACL rule with the deny action.
- C. An ACL is configured but it does not contain any rules.
- D. All rules are traversed but no matching rule is found.
Correct Answer: A,C,D 🗳️
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To prevent inter-area routing loops, OSPF does not allow advertising routing information between two non- backbone areas and allows sing 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.
- A. TRUE
- B. FALSE
Correct Answer: A 🗳️
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R1, R2, R3, and R4 run IS-IS, and the DIS priorities of their interfaces are shown in the following figure. If all these devices are started simultaneously, will be elected as the DIS. (Enter the device name, for ex ample, R1.)
Correct Answer:
R4
* DIS Election in IS-IS :
* In IS-IS, the Designated Intermediate System (DIS) is elected on broadcast networks to reduce the number of LSAs exchanged and maintain the LSDB.
* The DIS is elected based on priority :
* The router with the highest priority is elected as the DIS.
* If priorities are equal, the System ID is used as a tie-breaker, and the router with the highest System ID becomes the DIS.
* HCIP-Datacom-Core Technology Training Material (IS-IS DIS Election Mechanism) .
Given DIS Priorities :
R1: Priority = 10
R2: Priority = 20
R3: Priority = 30
R4: Priority = 40
R4 has the highest DIS priority of 40 , which makes it the clear choice for DIS election.
Scenario Details :
Since all devices are started simultaneously, the DIS election process will follow the priorities without requiring a tie-breaker (System ID).
Conclusion :
The device with the highest DIS priority is R4 , and it will be elected as the DIS.
When configuring an ACL on a router, you can specify a unique number or name to identify the ACL. Once a named ACL is created, it cannot be modified. You can only delete the named ACL and reconfigure it.
- A. TRUE
- B. FALSE
Correct Answer: B 🗳️
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