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Huawei H12-891_V1.0 Certification Exam is an industry-recognized certification that demonstrates the candidate's proficiency in data communication technologies. HCIE-Datacom V1.0 certification exam is designed to help professionals advance in their careers by providing them with the necessary skills and knowledge to design and implement complex data communication networks.

Huawei H12-891_V1.0 (HCIE-Datacom V1.0) exam is a comprehensive certification program that is recognized globally. HCIE-Datacom V1.0 certification demonstrates that a candidate has the knowledge, skills, and expertise required to design, implement, maintain, and troubleshoot complex data communication networks. HCIE-Datacom V1.0 certification program is ideal for network engineers, network administrators, and IT professionals who want to enhance their career prospects and advance their skills in the field of data communication.

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Huawei H12-891_V1.0 (HCIE-Datacom V1.0) Exam is a four-hour test that consists of both theoretical and practical assessments. Candidates are evaluated based on their knowledge of Huawei Datacom products and their ability to configure and troubleshoot complex network scenarios. H12-891_V1.0 Exam is divided into two parts, the written exam, and the lab exam. The written exam includes multiple-choice questions, while the lab exam tests the candidate’s ability to configure network devices and services.

Huawei HCIE-Datacom V1.0 Sample Questions (Q303-Q308):

NEW QUESTION # 303
Which of the following channels are involved in the Huawei SD-WAN Solution?

A. Data channel
B. Management channel
C. Orchestration channel
D. Control channel

Answer: A,B,C,D

Explanation:
Comprehensive and Detailed In-Depth
The Huawei SD-WAN Solution involves four types of channels to ensure smooth and efficient network operation:
Management Channel (A): Used for managing and monitoring SD-WAN devices. It facilitates communication between the iMaster NCE-Campus controller and SD-WAN devices.
Control Channel (B): Responsible for transmitting control plane information such as routing updates and protocol control messages.
Data Channel (C): Carries actual user data traffic over the SD-WAN network.
Orchestration Channel (D): Used for service orchestration, configuration delivery, and policy management.
All four channels work together to provide comprehensive network management, data transmission, and service orchestration in an SD-WAN environment.
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei SD-WAN Solution Documentation

NEW QUESTION # 304
The correct statement about the IGMP proxy is ? Multi-select

A. IGMP proxy device cannot send query messages to downstream member hosts in place of the IGMP queryer to maintain group membership
B. IGMP proxy is typically deployed on devices between hosts that are members of the access device The
C. IGMP proxy can detect the link status with the linkage through the information of the member host joining/leaving the multicast group, and realize the rapid switching of the primary and standby device links
D. The downstream interface of the IGMP proxy device generates multicast relay table items

Answer: B,C,D

NEW QUESTION # 305
Which of the following options is correct?

A. Since multicast is based on TCP to establish a connection, multicast technology can ensure the reliable transmission of data
B. Unicast and broadcasting cannot effectively achieve data transmission between one source and multiple destinations on P2MP, but multicast technology can
C. Multicast technology is able to reduce redundant traffic, so network bandwidth can be saved C.
Multicast technology is used for "-to-many" applications

Answer: A,C

NEW QUESTION # 306
What can be determined from the following figure?

A. R3 must be a Level-1 device.
B. R3 must be a Level-2 device.
C. R3 must be a Level-1-2 device.
D. The device role of R3 cannot be determined.

Answer: C

Explanation:
To determine R3's role (Level-1, Level-2, or Level-1-2) based on the provided output of the display ipv6 routing-table protocol isis command on R3, we need to analyze the IS-IS routing information and understand IS-IS hierarchy and behavior, particularly in the context of IPv6 routing. Let's break it down step by step:
Understanding the IS-IS Levels and Hierarchy:
IS-IS (Intermediate System to Intermediate System) is a link-state routing protocol that supports a two-level hierarchy:
Level-1: Routers within the same area, responsible for intra-area routing. Level-1 routers only maintain routing information for their area and rely on Level-1-2 routers to reach other areas.
Level-2: Routers that form the backbone, connecting different areas for inter-area routing. Level-2 routers maintain routing information across areas.
Level-1-2: Routers that operate both at Level-1 (within their area) and Level-2 (to connect to other areas).
These routers act as boundary routers between Level-1 areas and the Level-2 backbone.
A router's role (Level-1, Level-2, or Level-1-2) determines which types of adjacencies it can form and what routing information it advertises or receives.
Analyzing the Output:
The output shows R3's IPv6 routing table with routes learned via IS-IS, specifically:
Destination: 2082:EDFC:DDCC::B824:0/127, Protocol: ISIS-L1
This route is learned via IS-IS Level-1 (ISIS-L1), indicating that R3 has a Level-1 adjacency and is receiving or advertising routes within its area.
The next hop (FE80::2E0:FCFF:FE45:6A3E) and interface (GigabitEthernet0/0/0) suggest this route is intra- area.
Destination: 2082:EDFC:DDCC::B891:0/127, Protocol: ISIS-L2
This route is learned via IS-IS Level-2 (ISIS-L2), indicating that R3 has a Level-2 adjacency and is receiving or advertising routes for inter-area or backbone routing.
The next hop (FE80::2E0:FCFF:FE50:406F) and interface (GigabitEthernet0/0/1) suggest this route is for a different area or the backbone.
Both Level-1 and Level-2 routes are present in R3's routing table, which provides critical insight into R3's role.
Determining R3's Role:
Level-1 Routers:
Level-1 routers only participate in Level-1 adjacencies and maintain routing information for their area. They do not have Level-2 routes or adjacencies unless connected to a Level-1-2 router. Since R3 has a Level-2 route (ISIS-L2), it cannot be exclusively a Level-1 router.
Level-2 Routers:
Level-2 routers focus on inter-area routing and typically do not maintain Level-1 routes unless they are also configured as Level-1-2. Since R3 has a Level-1 route (ISIS-L1), it cannot be exclusively a Level-2 router.
Level-1-2 Routers:
Level-1-2 routers operate both at Level-1 (for intra-area routing) and Level-2 (for inter-area routing). They can form adjacencies with both Level-1 and Level-2 neighbors and maintain both types of routes. The presence of both ISIS-L1 and ISIS-L2 routes in R3's routing table indicates that R3 is participating in both Level-1 and Level-2 adjacencies, making it a Level-1-2 router.
Evaluating Each Option:
A: R3 must be a Level-2 device.
This is incorrect because R3 has ISIS-L1 routes, indicating it is also participating in Level-1 adjacencies, which Level-2-only devices do not do. Level-2 devices focus solely on inter-area routing and do not maintain Level-1 routes.
B: The device role of R3 cannot be determined.
This is incorrect because the presence of both ISIS-L1 and ISIS-L2 routes in the routing table clearly indicates R3's role. The combination of Level-1 and Level-2 routes confirms R3 is a Level-1-2 router.
C: R3 must be a Level-1-2 device.
This is correct. The routing table shows both ISIS-L1 (Level-1) and ISIS-L2 (Level-2) routes, meaning R3 is operating as both a Level-1 and Level-2 router, which defines a Level-1-2 device.
D: R3 must be a Level-1 device.
This is incorrect because R3 has ISIS-L2 routes, indicating it is also participating in Level-2 adjacencies, which Level-1-only devices do not do. Level-1 devices only maintain intra-area routes and rely on Level-1-2 routers for inter-area reachability.
Additional Considerations:
The Flags: D in the output typically indicates a directly connected route or a route downloaded to the forwarding table, but it does not affect the determination of R3's IS-IS level.
The preference (15) and cost (20) are standard for IS-IS routes and do not impact the level determination.
In Huawei's IS-IS implementation, routers can be configured explicitly as Level-1, Level-2, or Level-1-2 using commands like isis level-1-2 under the IS-IS process. The presence of both Level-1 and Level-2 routes confirms R3's configuration as Level-1-2.
Huawei HCIE-Datacom Context:
According to Huawei HCIE-Datacom documentation, IS-IS routers can operate at different levels, and the routing table's protocol type (ISIS-L1 or ISIS-L2) indicates the level of adjacency. A router with both Level-1 and Level-2 routes is necessarily a Level-1-2 device, as it participates in both intra-area and inter-area routing.
The display ipv6 routing-table protocol isis command on Huawei devices shows routes learned via IS-IS, and the protocol type (L1 or L2) directly reflects the router's role in the IS-IS hierarchy.
Conclusion:
Based on the presence of both ISIS-L1 and ISIS-L2 routes in R3's IPv6 routing table, R3 must be a Level-1-2 device, as it is participating in both Level-1 (intra-area) and Level-2 (inter-area) adjacencies. Therefore, the correct answer is C.
References to Huawei HCIE-Datacom Documents:
Huawei HCIE-Datacom V1.0 Training Material, Chapter on IS-IS Configuration and Hierarchy.
Huawei NE Series Router Configuration Guide, IS-IS Section (Level-1, Level-2, and Level-1-2 Operations).
Huawei Technical Whitepaper on IS-IS Protocol, discussing IPv6 Routing and Level Determination.

NEW QUESTION # 307
Which of the following types of LSAs does OSPF use to support SR-MPLS?

A. Type 1 Router LSA
B. Type 2 Network LSA
C. Type 7 NSSA External LSA
D. Type 10 Opaque LSA

Answer: D

Explanation:
Comprehensive and Detailed In-Depth Explanation:
To supportSR-MPLS (Segment Routing over MPLS),OSPFusesType 10 Opaque LSAsto advertiseSegment Routing (SR) capabilities and information.
Type 10 Opaque LSA (B): Used fordistributing application-specific informationwithin an OSPF area. In SR- MPLS, it carries theSID/Label mappingsand other SR-related information.
Type 7 NSSA External LSA (A):Used to advertise external routes within an NSSA, not related to SR-MPLS.
Type 1 Router LSA (C):Advertises the router's interfaces and links but does not carry SR-specific information.
Type 2 Network LSA (D):Advertises the links of abroadcast or NBMA network, not used for SR-MPLS.
Therefore, the correct answer isB (Type 10 Opaque LSA), as it enables theadvertisement of SR information.

NEW QUESTION # 308
......

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