H12-893_V1.0 New Study Materials | New H12-893_V1.0 Exam Prep

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Huawei H12-893_V1.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Data Center Network Technology and Application: This section evaluates the skills of IT Solution Architects and Data Center Network Engineers in understanding the fundamental concepts, evolution, and significance of data centers in modern enterprises. It delves into the overall architecture, including computing, storage, and networking components, and highlights typical application scenarios in sectors like finance, government, and large enterprises. Additionally, it introduces core concepts of data center networking (DCN), focusing on the Spine-Leaf architecture, and provides an overview of essential data center technologies such as VXLAN-based network layers, Underlay and Overlay networks, integrated cabling designs (ToR, EoR, MoR), equipment room modules, and the role of iMaster NCE in managing network devices.
Topic 2
  • Data Center Network Planning and Deployment: This section assesses Data Center Network Engineers' skills in planning, designing, and deploying data center networks using the CloudFabric solution. It covers network architecture design, data planning, underlay and overlay network design, security considerations, management strategies, and provides a deployment guide for the CloudFabric solution in computing scenarios, including pre-configuration, service provisioning, and simplified deployment processes.
Topic 3
  • Huawei CloudFabric Solution: Targeting IT Solution Architects, this section introduces Huawei's CloudFabric solution, addressing evolving trends and challenges in data center networks. It highlights the solution's components, key features, and advantages in modern data centers.
Topic 4
  • Technical Principles and Applications of VXLAN: Aimed at Data Center Network Engineers, this section evaluates their understanding of the necessity, development, and foundational concepts of VXLAN technology in addressing traditional network limitations. It also delves into the principles of Ethernet VPN (EVPN) as a control plane for VXLAN and presents practical VXLAN deployment examples in common data center scenarios.
Topic 5
  • Data Center Network O&M: Aimed at Data Center Network Engineers, this section evaluates their understanding of operation and maintenance (O&M) challenges in data center networks. It introduces Huawei's intelligent O&M solutions, including iMaster NCE-Fabric and iMaster NCE-FabricInsight, and discusses typical O&M scenarios, management, monitoring, troubleshooting practices, and automated O&M strategies through network service programmability.

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Huawei HCIP-Data Center Network V1.0 Sample Questions (Q75-Q80):

NEW QUESTION # 75
VXLAN is a network virtualization technology that uses MAC-in-UDP encapsulation. What is the destination port number used during UDP encapsulation?

Answer: D


NEW QUESTION # 76
BGP EVPN defines several types of BGP EVPN routes by extending BGP. Type ? routes are used to advertise host IP routes and external network routes. (Enter only digits.)

Answer:

Explanation:
5
Explanation:
BGP EVPN (Ethernet VPN) extends BGP to provide control plane functionality for VXLAN overlays, including in Huawei's data center networks. EVPN defines several route types to advertise different types of information:
Type 1: Auto-discovery routes for EVPN instances.
Type 2: MAC/IP Advertisement routes for host reachability.
Type 3: Inclusive Multicast Ethernet Tag routes for multicast traffic.
Type 4: Ethernet Segment routes for multi-homing.
Type 5: IP Prefix routes for advertising host IP routes and external network routes, enabling inter-subnet and external connectivity.
The question specifies routes used to advertise "host IP routes and external network routes," which aligns with Type 5 routes. These routes carry IP prefix information and a Layer 3 VNI, facilitating Layer 3 routing within the EVPN domain or to external networks. Thus, the answer is 5.


NEW QUESTION # 77
After an M-LAG works properly, the two member devices synchronize information with each other in real time. Which of the following pieces of information are synchronized between devices?
(Select All that Apply)

Answer: B,C

Explanation:
In Huawei's M-LAG (Multi-Chassis Link Aggregation) on CE series switches, the two member devices synchronize critical information over the peer-link to ensure seamless operation and failover. Let's evaluate each option:
A). ACL information: Access Control List (ACL) configurations are typically not synchronized in M- LAG, as they are device-specific security policies. Synchronization of ACLs is not a standard feature in Huawei's M-LAG implementation. NOT SYNCHRONIZED.
B). STP status: Spanning Tree Protocol (STP) status (e.g., port roles, states) is synchronized to maintain a consistent loop-free topology across M-LAG peers, especially when V-STP or other STP variants are used. SYNCHRONIZED.
C). Device name: Device names are administrative identifiers and are not synchronized, as they do not impact traffic forwarding or M-LAG functionality. NOT SYNCHRONIZED.
D). LACP information: Link Aggregation Control Protocol (LACP) status (e.g., link states, aggregation details) is synchronized to ensure both M-LAG devices present a unified LAG to downstream devices, supporting load balancing and failover. SYNCHRONIZED.
Thus, B (STP status) and D (LACP information) are synchronized between M-LAG devices.


NEW QUESTION # 78
Which of the following statements are true about a routing design that employs OSPF on the underlay network of a DC? (Select All that Apply)

Answer: A,B

Explanation:
OSPF (Open Shortest Path First) is a routing protocol used in the underlay network of Huawei's CloudFabric DCNs. Let's evaluate each statement:
A). Typically, the IP address of Loopback0 is configured as the VTEP IP address and the same IP address is planned for active-active leaf nodes in the same group: This is true. Loopback0 IP is commonly used as the VTEP IP for stability, and in active-active leaf node groups (e.g., M-LAG), the same IP can be configured with VRRP or anycast to ensure consistency. TRUE.
B). The network type of spine and leaf nodes can be set to P2P in order to accelerate convergence: This is true. Setting OSPF network type to Point-to-Point (P2P) on spine-leaf links reduces overhead (e.g., no DR/BDR election) and speeds up convergence, a recommended practice in Huawei DCNs. TRUE.
C). This routing design is recommended when the DC has more than 300 switches: This is false.
OSPF is suitable for smaller to medium-sized DCNs (e.g., up to 200-300 switches). For larger networks (>300 switches), EBGP is preferred due to better scalability and reduced complexity.
FALSE.
D). It is recommended that all devices be planned in Area 0: This is false. While a single Area 0 is possible for small DCNs, multi-area OSPF is recommended for larger networks to manage scalability and reduce routing table size, avoiding a flat Area 0 design. FALSE.
Thus, A and B are true statements about OSPF routing design in a DC underlay.


NEW QUESTION # 79
In EVPN Type 3 routes, the MPLS Label field carries a Layer 3 VNI.

Answer: A

Explanation:
EVPN (Ethernet VPN) is a control plane technology used with VXLAN in Huawei's data center networks to provide Layer 2 and Layer 3 connectivity. EVPN routes are advertised using BGP, with different types serving specific purposes. Type 3 routes (Inclusive Multicast Ethernet Tag routes) are used for multicast or BUM (Broadcast, Unknown Unicast, Multicast) traffic handling in VXLAN networks.
MPLS Label Field: In MPLS (Multiprotocol Label Switching), the label field is used to identify the forwarding equivalence class (FEC) or virtual circuit. In EVPN with VXLAN, MPLS labels can be used in underlay networks, but VXLAN itself relies on a VNI (VXLAN Network Identifier) in the VXLAN header for overlay segmentation.
Layer 3 VNI: A Layer 3 VNI is associated with inter-subnet routing in EVPN, typically carried in Type 5 routes (IP Prefix routes) for Layer 3 forwarding. Type 3 routes, however, focus on multicast distribution and carry a Layer 2 VNI or multicast group information, not a Layer 3 VNI.
MPLS Label in Type 3 Routes: The MPLS label in Type 3 routes, if used, identifies the VXLAN tunnel or multicast group, not a Layer 3 VNI. The Layer 3 VNI is specific to Type 5 routes for routing between subnets, not Type 3's multicast focus.
Thus, the statement is FALSE (B) because the MPLS Label field in EVPN Type 3 routes does not carry a Layer 3 VNI; it relates to Layer 2 multicast or tunnel identification.


NEW QUESTION # 80
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