Pass your actual test at first attempt with Huawei H12-921_V1.0 training material
Last Updated: Jul 30, 2026
No. of Questions: 241 Questions & Answers with Testing Engine
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| Section | Weight | Objectives |
|---|---|---|
| Data Center Network Planning and Design | 8% | - Network scalability and redundancy design - Underlay and overlay design principles - IP addressing and VLAN planning - Requirement analysis and capacity planning |
| Advanced Technologies and Applications of Data Center Networks | 31% | - Cloud and container network integration - Network virtualization and multi-tenant solutions - Data center network reliability and high availability - VXLAN and EVPN technologies - Data center routing protocols |
| Huawei CloudFabric Solution | 30% | - Multi-data center interconnection - iMaster NCE-Fabric management platform - CloudFabric architecture and components - Cloud-network integration solutions - Data center security in CloudFabric - CloudFabric deployment models |
| Data Center Network Basic Knowledge | 15% | - Network virtualization and SDN concepts - Overlay network fundamentals - Data center and data center network overview - Data center network architecture and evolution - Underlay network technologies |
| Data Center Network O&M and Troubleshooting | 16% | - Performance optimization and tuning - Network change and upgrade procedures - Monitoring and management systems - Fault diagnosis and troubleshooting methodology |
1. What are the correct items in the following description of lossless network architecture design in multivariate computing scenarios?
A) In the case of a two-level network, the Spine switch does not have an uplink interface, and all ports are used to connect to the Leaf switch
B) In two-tier networking, the number of Spine switches is equal to the total number of upstream interfaces of all leaf switches divided by the number of interfaces per Spine switch and rounded up by D
C) When designing a network architecture, a bottom-up approach is generally used to determine how many layers of architecture to use based on the size of the network
D) First, the total number of network access interfaces is determined according to the number of computing nodes in the cluster and the number of service interfaces of each node
2. What is correct about the following description of Docker?
A) The Docker engine obtains the image from the repository and runs the container on the corresponding host
B) Docker containers are created based on images, and a running container is a process running on a Docker host
C) Image in Docker can be regarded as a special file system, which only provides the programs required by the container runtime, and the libraries, resources, configurations, and other files required by the container runtime are hosted by the host Machine OS provides
D) Image files are stored centrally in a repository and can be public or private
3. In the container network scenario of the CloudFabric solution, when the container L3 is connected, which of the following components undertakes the task of establishing a BGP neighbor relationship with the ServerLeaf?
A) VSwitch
B) Bird
C) Etcd
D) CNI Plugin
4. As shown in the diagram, when DCs are interconnected via VLAN Hand-off, which of the following describes the error?
A) DCI-GW does not learn the routes between the service host and the network
B) Transmission of common VLAN packets between the Fabric-GW and the DCI-GW
C) DCI-GW requires VXLAN support
D) The DCI network only passes the underlay route for the DCI-GW
5. Which of the following interface standards uses SCSI instructions?
A) SATA
B) FC
C) IDE
D) SAS
Solutions:
| Question # 1 Answer: A,B,C,D | Question # 2 Answer: A,B,D | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: A,B,D |
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