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Free Huawei H12-921_V1.0 Practice Exam with Questions & Answers | Set: 4

Questions 31

Which of the following is the destination MAC address of the PFC backpressure frame?

Options:
A.

0180-c200-0001

B.

0280-c200-0001

C.

0100-5e00-0003

D.

0080-c200-0002

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Questions 32

In the container network scenario of the CloudFabric solution, when the container L3 is connected, the calico CNI plug-in does not need to configure which parameters of the container NIC?

Options:
A.

VLAN

B.

routing

C.

IP

D.

MAC

Questions 33

Which of the following data center deployment scenarios is typically used to achieve business continuity and ensure uninterrupted service to users in the event of a failure?

Options:
A.

Intra-city active-active

B.

Two places and three centers

C.

Edge DC

D.

Hybrid cloud

Questions 34

In a data center network, which of the following technologies can be used to achieve sub-second data collection?

Options:
A.

SNMP

B.

Telemetry

C.

NETCONF

D.

RESTCONF

Questions 35

iMaster NCE-Fabric supports the three-level rollback function, which of the following refers to the backup and rollback of a single point of service of a single tenant?

Options:
A.

Network-wide rollback

B.

Configure rollback

C.

Tenant rollback

D.

Business rollback

Questions 36

In Huawei's SDN solution, what is the wrong description of the FusionSphere business model?

Options:
A.

PODs are physical units, i.e. a Fabric network can be thought of as a POD.

B.

VDC is a resource unit, VDC supports cross-POD deployment, and tenants rent resources at VDC granularity.

C.

VPC is a business unit, and VPC supports cross-POD deployment.

D.

VMs are virtual machines, and VMs can be deployed across VPCs.

Questions 37

Which of the following descriptions of the open source OpenStack Glance component is correct?

Options:
A.

Modifying an instance that is started based on an image is actually modifying the image

B.

Glance provides the ability to discover, register, and retrieve virtual machine images

C.

Virtual Machine Instance images provided by Glance can only be placed in object storage provided by Swift

D.

You can launch only one instance from the same image

Questions 38

For CloudFabric-based data center networks, you can use the iMaster NCE-Fabric controller and iMaster NCE-FabricInsight analyzer to provide refined O&M for the network. Which of the following is NOT an O&M feature provided by iMaster NCE-Fabric?

Options:
A.

Network health

B.

Service path detection

C.

Three levels of rollback

D.

Three-layer topology looks at each other

Questions 39

Which of the following descriptions of open source OpenStack Neutron components is correct?

Options:
A.

The plug-in agent is deployed on every host running the hypervisor and provides a local virtual switch configuration

B.

Compute nodes include: Core Plug-in, Agent, and Service Plug-in

C.

Core Plug-in provides services including Network, Subnet, Port, and Router

D.

The Neutron Server is responsible for receiving the Message Queuing request and invoking the appropriate plug-in to process it

Questions 40

Which of the following descriptions of the basic concepts of Neutron is wrong?

Options:
A.

Security Group implements basic access control for virtual machine traffic

B.

External Network is a special type of network that enables virtual machines to communicate with external networks

C.

Router is used to connect subnets within a tenant to the same network or between different networks, as well as to connect internal and external networks

D.

The virtual machine can access the external network through the floating IP, but the outside world cannot access the virtual machine through the FLoating IP

Exam Code: H12-921_V1.0
Certification Provider: Huawei
Exam Name: HCIE-Data Center Network (Written) V1.0
Last Update: Jul 14, 2025
Questions: 239

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