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Real Huawei H12-821_V1.0 Exam Questions & New H12-821_V1.0 Study Guide

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Huawei H12-821_V1.0 (HCIP-Datacom-Core Technology V1.0) certification exam is a highly sought-after certification in the field of data communications. It is designed to test the knowledge and skills of candidates in the core technologies of data communication, including network protocols, network devices, network security, and network virtualization.

>> Real Huawei H12-821_V1.0 Exam Questions <<

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Huawei H12-821_V1.0 (HCIP-Datacom-Core Technology V1.0) exam is a certification test for IT professionals who want to demonstrate their expertise in data communication core technologies. H12-821_V1.0 exam is designed to test the skills and knowledge required for the design and implementation of data communication networks using Huawei technologies. H12-821_V1.0 Exam covers a wide range of topics, including network architecture, network protocols, network security, and network maintenance.

Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q171-Q176):

NEW QUESTION # 171
When two routers exchange LSDB information using DD packets, a master/slave relationship is formed first, the router with a larger router ID is the master, and determine the MS bit.

A. FALSE
B. TRUE

Answer: B

Explanation:
When OSPF routers exchange LSDBs using Database Description (DD) packets, they first establish a master- slave relationship. The router with the larger Router ID becomes the master, setting the MS (Master/Slave) bit in the DD packets. This hierarchical relationship ensures an orderly exchange of routing information .

NEW QUESTION # 172
On an IS-IS network, all routers generate LSPs. Which of the following types of information isnotcontained in the LSPs generated by pseudonodes?

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

Answer: B

Explanation:
Apseudonodein IS-IS is a logical representation of a broadcast network segment (e.g., Ethernet) where theDesignated Intermediate System (DIS)generates an LSP on behalf of the LAN.
Pseudonode LSPs contain:
Interface information(i.e., the interface that connects to the pseudonode) Neighbor information(adjacencies with other routers on the LAN) Protocol information(e.g., supported address families) However,route information is not containedin LSPs generated by pseudonodes because routing information is advertised in theLSPs generated by the routers themselves, not the pseudonode.
Reference from Huawei HCIP-Datacom-Core Technology Study Guide:
"Pseudonode LSPs contain information about the broadcast link, including interface and neighbor data. They do not advertise routing entries." (Chapter: IS-IS Advanced Features - Section: DIS and Pseudonodes)

NEW QUESTION # 173
In VRRP networking, if VRRP is not configured to track an uplink interface and the uplink interface or link of the master device in a VRRP group fails, no switchover will be triggered. As a result, a traffic blackhole occurs.

A. FALSE
B. TRUE

Answer: B

Explanation:
If VRRP is not configured to track uplink interfaces, a failure in the master device's uplink or link will not trigger a switchover, resulting in a traffic blackhole. The VRRP mechanism relies on interface tracking to monitor connectivity and ensure role transitions upon faults. Without this configuration, no failover occurs, and traffic directed toward the master device is lost .

NEW QUESTION # 174
On an OSPF network, OSPF routers exchange LSAs to synchronize their LSDBs. If an OSPF router receives an LSA that does not exist in its LSDB, it updates its LSDB and floods the LSA.

A. FALSE
B. TRUE

Answer: B

Explanation:
In OSPF (Open Shortest Path First), each router maintains aLink-State Database (LSDB), which must be synchronized with other routers in the same area. When an OSPF router receives anLSA (Link-State Advertisement)that it doesnot already have in its LSDB, it takes the following steps:
It updates its LSDB with the new LSA.
It floods the LSA to all its other OSPF neighbors (except the one from which it received the LSA).
This ensures that all routers in the OSPF area eventually converge to the same network topology.
Reference from Huawei HCIP-Datacom-Core Technology Study Guide:
"When an LSA is received and it is newer or not present in the LSDB, the router updates the LSDB and floods the LSA to other neighbors to ensure database synchronization." (Chapter: OSPF Fundamentals - Section: LSDB Synchronization)

NEW QUESTION # 175
A firewall receives a packet that PC1 sends to PC2. Which of the following statements are true?

A. The packet matches security policy rule 1, and the firewall forwards the packet.
B. The packet matches security policy rule 1, and the firewall discards the packet.
C. The packet does not match any security policy.
D. No source or destination security zone is specified in security policy rule 2, indicating that any security zone is a match.

Answer: A

Explanation:
The security policy specifies that traffic originating from 12.1.1.2 and destined for the untrust zone is permitted. Since the source address of the packet (12.1.1.1) does not match this rule, the packet matches the default implicit deny rule. However, rule 1 does not deny all other traffic explicitly, so the packet is forwarded based on further configurations .

NEW QUESTION # 176
......

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