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Huawei H12-921_V1.0 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Center Network Architecture | - Modern data center architecture principles - Cloud data center evolution and design models |
| Data Center Network Technologies | - Layer 2 and Layer 3 switching technologies
|
| Data Center Storage and Virtualization | - Compute and network virtualization integration - Storage networking fundamentals |
| Cloud Data Center and SDN | - SDN architecture and controllers - Huawei CloudFabric solution concepts |
| High Availability and Security | - Data center redundancy and HA design - Security mechanisms in data center networks |
Huawei HCIE-Data Center Network (Written) V1.0 Sample Questions:
In a CloudFabric solution, the fault detection and fault-tolerant design of the firewall includes ?().
- A. A heartbeat cable is deployed between the two FWs to check the status of the peer FW and the heartbeat link connectivity
- B. FW fault: After the FW is switched over to the primary/standby, the FW sends a free ARP packet to trigger the refresh of the forwarding entries on the switch and direct the traffic to the FW standby
- C. It is recommended that each FW and service be connected in a single-arm mode, and the upstream and downstream logical ports fail at the same time, resulting in higher failover performance
- D. Link fault: If any link on the edge leaf of the FW primary connection fails, the M-lag member port goes down, and the double homing becomes single homing, which does not affect the forwarding of FW primary traffic
With respect to CloudFabric's ZTP scenario, which of the following types of servers does the device get the configuration file from?
- A. DHCP server
- B. Syslog server
- C. Version File Server
- D. Intermediate file servers
When service packets are connected to a VXLAN network through a Layer 2 sub-interface, different flow encapsulation types need to be configured on different Layer 2 sub-interfaces The same physical interface can access different data packets. Which of the following is NOT a stream encapsulation type that is supported by a Layer 2 sub-interface?
- A. Trunk
- B. Dotlq
- C. QinQ
- D. Untag
What are the following descriptions of open source OpenStack components, and what are the errors?
- A. The OpenStack computing resource architecture adopts a multi-level architecture, from top to bottom:
Region and Host Aggregate AZ - B. OpenStack uses Ceilometer components to monitor business modules, including: Cinder, Neutron ,Nova, Swift Glance
- C. OpenStack controls and manages corresponding resources through the collaborative interaction of various components
- D. The OpenStack architecture includes not only the components of computing, network, and storage, but also other module components such as orchestration and shared services
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Which of the following descriptions of VNI in a VXLAN network is correct?
- A. L2 VNI is used to forward VXLAN packets on the same subnet, and different BDs can also use the same L2 VNI to achieve Layer 2 communication on VXLAN networks. All VXLAN packets carry both L2 VNI and L3 VNI
- B. L3 VNI is associated with a VPN instance to forward VXLAN packets across subnets, and VPIN instances associated with different L3 VNIs only need to be RT Values can be matched to achieve interoperability
- C. A tenant can have one or more VNIs with a VNI length of 16 bits, supporting millions of tenants
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