Huawei H12-921 Exam Questions and Answers, HCIE-Data Center Network (Written) | SPOTO

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Question #1

In the container network scenario of the CloudFabric solution, when the container accesses the network through the L3 route mode, which of the following components establishes a BGP neighbor relationship with the ToR?

A. CNI Plugin

B. vRouter

C. birdcorrect

D. etcd

View answer

Correct Answer: C

Question #2

Which of the following describes the error of the three-level rollback function supported by iMaster NCE-Fabric?

A. Network-wide rollback allows you to roll back the entire network configuration to before the configuration change to quickly restore services

B. The three-level rollback function supports manual backup and automatic backup, and supports automatic recovery when the network is abnormalcorrect

C. Tenant snapshots are backups and restores of the network at tenant granularity

D. Service rollback supports single-point service recovery

View answer

Correct Answer: B

Question #3

Which of the following parameters is used by OpenStack to define VM specifications?

A. Flavor

B. Datasheet

C. Instance

D. Label

View answer

Correct Answer: A

Question #4

In the computing linkage scenario of the CloudFabric solution, when the VM is wired, iMasterNCEFabric senses the port on which of the host connects to the leaf point through which of the following protocols?

A. LLDPcorrect

B. NETCONF

C. HTTP

D. gRPC

View answer

Correct Answer: A

Question #5

Network-wide intelligent O&M is a feature of Huawei's CloudFabric solution, which provides intelligent O&M compared with traditional device-centric O&M It is centered on which of the following, minutes Level of identifying cyber risks?

A. Businesscorrect

B. Configuration

C. Hardware

D. Agreement

View answer

Correct Answer: A

Question #6

Centralized storage generally provides data storage by the storage array, which of the following components does the storage array contain?

A. Power modulecorrect

B. controllercorrect

C. Hard disk enclosurecorrect

D. Interface modulescorrect

View answer

Correct Answer: ABCD

Question #7

In a CloudFabric multi-computing lossless network, if a device wants to remove the PFC deadlock by not responding to a backpressure frame, which of the following lossless functions needs to be deployed?

A. PFC deadlock preventioncorrect

B. PFC deadlock detection

C. AI ECN

D. DCQCN

View answer

Correct Answer: A

Question #8

Which of the following descriptions of the RTT requirements between different PoDs is correct in the Multi-PoD scenario of the CloudFabric solution?

A. No more than 50mscorrect

B. No more than 100ms

C. No more than 10ms

D. No more than 1s

View answer

Correct Answer: A

Question #9

Which of the following devices can be used as service nodes in the service chain?

A. Firewallcorrect

B. WAFcorrect

C. LoadBalancecorrect

D. NIPcorrect

View answer

Correct Answer: ABCD

Question #10

Which of the following in server virtualization provides a user interface, has functions such as monitoring and managing virtualized resource pools, simplifying virtual machine management processes, and configuring resource scheduling policies and execution rules?

A. Hypervisor

B. Virtualization management platformcorrect

C. Virtual machines

D. Host OS

View answer

Correct Answer: B

Question #11

Which of the following types of routes does BGPMVPN advertise multicast source information?

A. Type 1 Routing (Intra-ASI-PMSIA-Droute)

B. 5 Class Routing (SourceActiveA-Droute)

C. 6 Class Routing (Share Tree Join route)

D. 7 Class Routing (SourceTreeJoinroute)

View answer

Correct Answer: B

Question #12

Device configuration parameters can be adjusted when using the edge intelligence function of iMaster NCE-FabricInsight for specified stream analysis. Which of the following device configurations cannot be automatically delivered during UDP specified stream analysis?

A. Active aging timecorrect

B. ACL Number

C. Whether the VXLAN packet is matched

D. Whether to match TAG packets with a layer 1 VLAN

View answer

Correct Answer: A

Question #13

Which of the following is not included in the PCIe fabric?

A. Routercorrect

B. Switch

C. Root Complex

D. PCIe Endpoint

View answer

Correct Answer: A

Question #14

In the CloudFabric solution, iMaster NCE-Fabric supports network O&M based on physical topology. When the color of a device in a physical topology is red, which of the following meanings is indicated?

A. The device is offline

B. There is an emergency alarmcorrect

C. Both the device and the link are normal

D. The link is disconnected and a non-emergency alarm exists

View answer

Correct Answer: B

Question #15

In Huawei's CloudFabric solution, in the scenario where the Border Leaf and Service Leaf are separated, what are the correct descriptions of the following principles for traffic orchestration between internal and external networks?

A. The controller creates the corresponding tenant VRF and egress VRF on the Border Leaf based on the tenant network and the external network

B. The route to the external network on the border leaf is delivered by the iMaster NCE-Fabric controller, and only static routes can be delivered to connect with the external network

C. The controller creates the corresponding tenant VRF and egress VRF on the Service Leaf based on the tenant network and the external networkcorrect

D. The backhaul route from the external network to the tenant network needs to be configured by the external network and cannot be delivered by the iMaster NCE-Fabric controllercorrect

View answer

Correct Answer: CD

Question #16

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

A. 0180-c200-0001correct

B. 0280-c200-0001

C. 0100-5e00-0003

D. 0080-c200-0002

View answer

Correct Answer: A

Question #17

In the Huawei CloudFabric solution, the network controller uses the NETCONF device to deliver configurations. Which of the following encodings does NETCONF information use?

A. XMLcorrect

B. HTML

C. JSON

D. PROTOBUF

View answer

Correct Answer: A

Question #18

Which of the following descriptions of the VPC routing table in the AWS public cloud model is wrong?

A. By default, subnets associated with different route tables within the same VPC are isolated from each othercorrect

B. The main route table is the route table that comes with the VPC, and the subnet in the VPC is associated with the main route table by default

C. A VPC can have one or more VPC route tables in a VPC

D. Each subnet needs to be associated with a VPC routing table that guides the routing and forwarding of EC2 instances within that subnet

View answer

Correct Answer: A

Question #19

Which of the following is not part of the analysis scope of the iMaster NCE-FabricInsight network snapshot function?

A. BGP and OSPF protocols

B. Device startup configurationcorrect

C. Number of packets lost on the interface

D. ARP entries

View answer

Correct Answer: B

Question #20

Which of the following types of network overlay networking does the CloudFabric solution consist of?

A. Hub-Spoke

B. Full-mesh

C. Centralized gatewayscorrect

D. Distributed gatewayscorrect

View answer

Correct Answer: CD

Question #21

An MPI collection operation is when all processes in a communication space work together to accomplish a specific data operation and transmission. Which of the following items fall into a common collection action type?

A. MPI_Scattercorrect

B. MPI_AllReducecorrect

C. MPI_Gathercorrect

D. P2P

View answer

Correct Answer: ABC

Question #22

Which of the following server components is used as a temporary place to store program instructions, data, and intermediate results during computation?

A. memorycorrect

B. hard disk

C. flash memory

D. CPU

View answer

Correct Answer: A

Question #23

Which of the following components of open-source OpenStack provides a Dashboard for users to use?

A. Cinder

B. Heat

C. Horizoncorrect

D. Keystone

View answer

Correct Answer: C

Question #24

In the process of open and programmable evolution of CloudFabric network services, APIs evolve from atomic APIs to network service APIs and then to intent APIs Which of the following is a web service API?

A. RESTful API

B. RESFCONF API

C. NETCONF API

D. Service Chain APIcorrect

View answer

Correct Answer: D

Question #25

Which of the following terms is NOT a hard disk media?

A. SANcorrect

B. SCM

C. SSD

D. HDD

View answer

Correct Answer: A

Question #26

In an HPC solution, which of the following nodes is typically installed on a GPU?

A. Accelerate the nodecorrect

B. Fat nodes

C. MPI node

D. Log in to the node

View answer

Correct Answer: A

Question #27

Which of the following components of open-source OpenStack provides management services for the lifecycle of bare metal servers?

A. Ironiccorrect

B. Nova

C. Horizon

D. Heat

View answer

Correct Answer: A

Question #28

Which of the following types of virtual NICs can be created by the Linux server?

A. Tuncorrect

B. Tapcorrect

C. Linux Bridge

D. OVS

View answer

Correct Answer: AB

Question #29

Which of the following IPv6 transformation solutions for data center networks only needs to transform the egress gateway to support IPV4/IPv6 dual-stack services, which requires less transformation effort and less impact on existing network services?

A. Dual-stack renovation scheme for Internet access area

B. Create an IPv6 single-stack solution for Internet access zones

C. Export NAT64 retrofit schemecorrect

D. Dual-stack transition and transformation scheme for Internet access area

View answer

Correct Answer: C

Question #30

Which of the following describes the error in the CloudFabric network virtualization scenario?

A. Network administrators control the network through iMaster NCE-Fabric

B. When the compute administrator creates the VM, select the PortGroup for the corresponding network

C. Compute administrators manage compute resources through VMM

D. iMaster NCE-Fabric obtains the connection between the host and the TOR port through VMMcorrect

View answer

Correct Answer: D

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