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Huawei H12-891_V1.0 (HCIE-Datacom V1.0) Certification Exam is a professional-level certification offered by Huawei Technologies Co. Ltd. HCIE-Datacom V1.0 certification is designed for network engineers, architects, and technicians who have a solid understanding of data communication technologies and wish to validate their expertise in designing and deploying large-scale data communication networks. The HCIE-Datacom V1.0 certification exam tests candidates on their ability to design, deploy, and troubleshoot complex data communication networks using Huawei’s networking equipment and technologies.

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Huawei H12-891_V1.0 (HCIE-Datacom V1.0) certification exam is designed to validate the skills and knowledge of IT professionals who are responsible for designing, deploying, and managing large-scale data communication networks. HCIE-Datacom V1.0 certification is an advanced-level certification that is intended for experienced network professionals who want to enhance their knowledge and skills in data communication technologies.

Huawei H12-891_V1.0: HCIE-Datacom V1.0 exam covers a wide range of topics related to data communication. H12-891_V1.0 Exam includes topics such as network planning and design, network implementation and management, routing and switching, network security, and network troubleshooting.

Huawei HCIE-Datacom V1.0 Sample Questions (Q175-Q180):

NEW QUESTION # 175
The following description of the GVRP interface registration mode in Huawei switches is correct?

A. When the normal registration mode is selected, allow the interface to dynamically register and unregister the VLAN. Logout here includes deleting dynamically learned VLANs and VLANs created natively by the administrator
B. GVRP when the register mode with forbidden is selected, there are four types of interface registration mode
C. When fixed registration mode is selected, the interface cannot propagate dynamic VLANs
D. When the interface layer two operating mode must be hybird

Answer: C

NEW QUESTION # 176
What's wrong about vrrp timers is ?

A. Skew Time= (255-Priority)/255
B. MASTER DOWN = (3*ADVER_ INTERVAL) + Skew_ time
C. By default, the time period for VRRP advertisement messages is 2 seconds
D. By default, the VRRP preemption delay is I seconds

Answer: A,C,D

NEW QUESTION # 177
NSF (Non-StoppingForwarding) and non-stop circuits are transmitted NSR (Non-Stopping Routing) are two highly reliable solutions, and the following statement is correct

A. NSF routers do not need to negotiate the ability to support NSF through specific messages
B. NSR backers require the ability to support NSR through specific message negotiation
C. After NSR enablement, if the business batch backup has not yet ended, a master board failure occurs, the NSR cannot be completed
D. After NSF is enabled, the router is switched back, and the routing table and forwarding table remain unchanged, so traffic is not lost during grf time

Answer: C

NEW QUESTION # 178
Which of the following statements is incorrect about adding devices on a virtualized network deployed using iMaster NCE-Campus?

A. iMaster NCE-Campus allows users to add devices by device role.
B. iMaster NCE-Campus allows users to add devices by device model.
C. iMaster NCE-Campus allows users to add devices by device ESN.
D. iMaster NCE-Campus allows users to add devices in batches.

Answer: B

Explanation:
Comprehensive and Detailed In-Depth
In the iMaster NCE-Campus virtualized network management platform, devices can be added using various methods:
A . In Batches: Correct. Devices can be added in bulk for efficient management.
B . By Device Role: Correct. Devices can be grouped and managed based on their role (e.g., access, aggregation, core).
C . By Device ESN (Electronic Serial Number): Correct. The ESN uniquely identifies the device within the system.
D . By Device Model: Incorrect. The platform does not use the device model as a primary criterion for adding devices. Instead, devices are typically added by role, ESN, or batch operations.
Reference:
Huawei iMaster NCE-Campus Configuration Guide
Huawei CloudCampus Solution Documentation

NEW QUESTION # 179
The following figure shows some configurations of R1. Based on these configurations, which of the following statements about IS-IS on R1 are correct?
isis 1
is-level level-2
cost-style wide
network-entity 49.0022.ee8c.a0c2.baf1.00
isis 2 vpn-instance tt
is-level level-2
cost-style wide
network-entity 47.00ce.390d.efdc.b3e1.00
isis 3 vpn-instance rr
is-level level-2
cost-style wide
network-entity 47.cc0a.3efb.bbdd.aae1.00

A. Routing information of process 2 is isolated from that of process 3.
B. Process 1 contains only global routing information.
C. Process 1 contains the global routing information and routing information of VRFs tt and rr.
D. Routing information is shared between processes 2 and 3.

Answer: A,B

Explanation:
Let's break this down step-by-step based on Huawei IS-IS VPN and multi-process behavior.
# Configuration Summary:
Process 1: IS-IS for the global routing table
Process 2: IS-IS for VPN instance tt
Process 3: IS-IS for VPN instance rr
# Option C: Correct
Process 1 contains only global routing information.
The configuration of isis 1 does not include any vpn-instance keyword, meaning it is bound to the global routing table.
It does not interact with VPN routing tables unless explicitly configured with import/export mechanisms or route leaking (which is not shown here).
Huawei Datacom Reference:
"When an IS-IS process is not associated with a VPN instance, it belongs to the global routing table and only maintains global routes." (Source: HCIE-Datacom Study Guide v3.0 - Chapter: IS-IS for IPv4 and IPv6, Section: Multi-Instance Routing)
# Option D: Correct
Routing information of process 2 is isolated from that of process 3.
isis 2 is bound to VPN instance tt
isis 3 is bound to VPN instance rr
Each IS-IS process in Huawei VRF context maintains independent LSDBs and routing tables, and by default, they do not share routing information unless route leaking or redistribution is configured (which is not shown in the config).
Huawei Datacom Reference:
"IS-IS processes bound to different VPN instances operate independently and do not share routing information." (Source: HCIE-Datacom Study Guide v3.0 - Chapter: MPLS L3VPN with IS-IS)

NEW QUESTION # 180
......

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