Free PDF 2025 Huawei Accurate H12-821_V1.0: Complete HCIP-Datacom-Core Technology V1.0 Exam Dumps
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Huawei H12-821_V1.0 Exam covers a wide range of topics related to data communication, including network architecture, network protocols, routing, switching, and security. H12-821_V1.0 exam also includes questions on Huawei's product line, such as routers, switches, and firewalls.
Huawei H12-821_V1.0 certification exam is intended for professionals who have experience working with Huawei data communication products and solutions. H12-821_V1.0 exam is designed to test candidates' understanding of the latest technologies and trends in the field of data communication, and their ability to apply this knowledge to real-world scenarios. HCIP-Datacom-Core Technology V1.0 certification is suitable for network engineers, network architects, and other IT professionals who are responsible for designing and managing data communication networks in their organizations. It is a valuable credential that can help IT professionals advance their careers and increase their earning potential.
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Huawei H12-821_V1.0 Questions and Start Preparation Today [2025]
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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q299-Q304):
NEW QUESTION # 299
Which of the following statements regarding different LSA types is false?
Answer: B
Explanation:
LS Ack (Link State Acknowledgment) packets are used to acknowledge received LSAs and do not contain complete LSA information. Instead, they contain only the headers of LSAs being acknowledged. This contrasts with LS Update packets, which carry full LSA details. The misunderstanding of LS Ack functionality makes this statement false .
NEW QUESTION # 300
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.
Answer: B
Explanation:
ACL Modification
* Named ACLs can be modified after their creation. Unlike numbered ACLs, named ACLs provide greater flexibility for editing individual rules without deleting the entire ACL.
* Therefore, the statement is incorrect.
HCIP-Datacom-Core Reference
* The flexibility and editability of named ACLs are discussed in the ACL configuration sections.
NEW QUESTION # 301
IGMP group entries play an important role in multicast forwarding. An administrator runs a command to view information about a multicast entry. The information is as follows:
sql
Copy
<HUAWEI> display igmp group
Interface group report information
Vlanif100(10.1.6.2):
Total 1 IGMP Group reported
Group Address Last Reporter Uptime Expires
225.1.1.2 10.1.6.10 00:02:04 00:01:17
Given this, which of the following statements are true?
Answer: B,C,D
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. Understanding the IGMP Group Entry:
The IGMP group entry contains key information about multicast groups on the interface:
* Group Address (225.1.1.2): The multicast group address that the user has joined.
* Last Reporter (10.1.6.10): The IP address of the last host that sent an IGMP Report message for this group.
* Uptime: The duration since the group was first reported.
* Expires: The remaining time before the group entry ages out if no further reports are received.
2. Analysis of Each Statement:
Option A: This entry can be used to construct the corresponding (S, G) entry.
* Incorrect.
* This is a group entry for IGMP, which contains information about the group (G) but does not include a specific source (S). (S, G) entries are created in PIM (Protocol Independent Multicast), not IGMP.
Option B: This entry is created when the device receives an IGMP Join message from a user.
* Correct.
* IGMP Join messages are used by hosts to signal their intent to join a multicast group. When such a message is received, the group entry is created.
Option C: Expires indicates the aging time of the IGMP group.
* Correct.
* The "Expires" field shows the remaining time before the group entry ages out if no further IGMP reports are received.
Option D: 225.1.1.2 is the address of the group that the user joins.
* Correct.
* The "Group Address" field explicitly states that 225.1.1.2 is the multicast group that the user has joined.
3. Summary:
* Correct Options: B, C, D
NEW QUESTION # 302
Which of the following statements regarding the BGP error display of a router is false?
Answer: B
Explanation:
The provided BGP error display shows the error timestamp as 12:40:39 on March 22, 2010. The error message confirms a mismatch in the peer AS number, as indicated in the "Incorrect remote AS" error info.
This eliminates options related to other causes, and the timestamp in Option A is incorrect .
NEW QUESTION # 303
On an OSPF network, the I bit, M bit, and MS bit in the first DD packet sent by a router are all set to 1.
Answer: B
Explanation:
In OSPF,Database Description (DD) packetsare used during the database synchronization process. In the first DD packet a router sends during neighbor establishment, three control bits are set:
I bit (Initial)= 1 # This indicates that the DD packet is the first in the sequence.
M bit (More)= 1 # This means more DD packets will follow.
MS bit (Master/Slave)= 1 # Set by the router assuming the master role in the exchange process.
Setting all three bits to 1 is a standard part of the DD exchange initiation.
Reference from Huawei HCIP-Datacom-Core Technology Study Guide:
"In the initial DD packet, the I, M, and MS bits are set to 1 by the master router initiating database exchange." (Chapter: OSPF Operation Mechanism - Section: Neighbor State Machine)
NEW QUESTION # 304
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