New HCIE-Data Center Network V1.0 (Written) H12-921_V1.0-ENU Exam Questions – Read Free Test Online

To earn the HCIE-Data Center Network V1.0 certification, you must pass a written exam and a lab exam. The written exam is H12-921_V1.0-ENU. If you are planning to take the Huawei H12-921_V1.0-ENU exam and searching the latest study materials, you can come to HCDAtest to choose the new H12-921_V1.0-ENU exam questions for learning. We have released H12-921_V1.0-ENU exam questions online to ensure that you can pass the exam smoothly.

The new H12-921_V1.0-ENU exam questions for the HCIE-Data Center Network V1.0 (Written) certification exam are great with 239 practice questions and answers. We have the Huawei H12-921_V1.0-ENU free test online to help you check the quality of the H12-921_V1.0-ENU exam questions. If have any questions, please contact us via mail: [email protected].

Begin to Test:

1. 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?

RESTful API

RESFCONF API

NETCONF API

Service Chain API

Question 1 of 33

2. In Huawei's CloudFabric solution, if you want to use a third-party VAS device to provide value-added services, which of the following VAS device management modes should you use if the VAS device cannot be managed by the controller?

Service Policy

Network Policy

Service Manager

Network Manager

Question 2 of 33

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

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

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

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

Service rollback supports single-point service recovery

Question 3 of 33

4. 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?

Hypervisor

Virtualization management platform

Virtual machines

Host OS

Question 4 of 33

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

XML

HTML

JSON

PROTOBUF

Question 5 of 33

6. n 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?

MPI_Scatter

MPI_AllReduce

MPI_Gather

P2P

Question 6 of 33

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

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

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

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

You can launch only one instance from the same image

Question 7 of 33

8. Which of the following components in Huawei's intelligent lossless network solution architecture for multi-computing scenarios offloads the RDMA input layer and the following protocol stacks to the NIC hardware, so that peripherals can directly access the memory of the remote host?

NIC driver

SmartNIC

Network equipment

iMasterNCEFabric

Question 8 of 33

9. Which of the following device statistics cannot be viewed in the device management of iMaster NCE-Fabric?

switchboard

router

firewall

server

Question 9 of 33

10. What is correct about the following description of Docker?

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

The Docker engine obtains the image from the repository and runs the container on the corresponding host

Image files are stored centrally in a repository and can be public or private

Docker containers are created based on images, and a running container is a process running on a Docker host

Question 10 of 33

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

Network administrators control the network through iMaster NCE-Fabric

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

Compute administrators manage compute resources through VMM

iMaster NCE-Fabric obtains the connection between the host and the TOR port through VMM

Question 11 of 33

12. When the cloud platform creates a VM resource, it needs to call multiple components, such as Nova, Cinder, Glance, etc., and the authentication and authentication between the components depends on which of the following options?

Freezer

Watcher

Keystone

Zun

Question 12 of 33

13. 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?

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

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

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

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 controller

Question 13 of 33

14. Runbook action (An action is composed of multiple steps, in which of the following APIs should each step be required??)

RESTful

NETCONF

OpenFlow

gRPC

Question 14 of 33

15. Which of the following falls under the technical layer of the AI industry?

Autonomous driving

machine learning

artificial intelligence

robot

Question 15 of 33

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

memory

hard disk

flash memory

CPU

Question 16 of 33

17. 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?

Dual-stack renovation scheme for Internet access area

Create an IPv6 single-stack solution for Internet access zones

Export NAT64 retrofit scheme

Dual-stack transition and transformation scheme for Internet access area

Question 17 of 33

18. Which of the following protocol standards is led by Huawei to solve the PFC head-resistance problem?

IEEE 802.1AB

IEEE P802.1CQ

IEEE 802.1Qcp

IEEE P802.1Qcz

Question 18 of 33

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

Router

Switch

Root Complex

PCIe Endpoint

Question 19 of 33

20. What are the correct items in the following descriptions of the design of the CloudFabric intelligent lossless multivariate computing physical network?

You can choose a two-layer or three-layer networking architecture based on the scale

The number of Spine switches needs to be considered based on the total number of upstream interfaces across all Leaf switches

Leaf switches can be deployed independently

To ensure high reliability on the access side, the server must be single-homed to the LEAF switch

Question 20 of 33

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

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

5 Class Routing (SourceActiveA-Droute).

6 Class Routing (Share Tree Join route).

7 Class Routing (SourceTreeJoinroute).

Question 21 of 33

22. Which of the following is wrong in the description of communication between VMs in a DVS distributed virtual switch environment in server virtualization?

VMs in the same port group, if they are on different hosts, can reach DVS on the destination host through the uplink of DVS and finally complete communication with the remote VM

VMs in different port groups (belonging to different VLANs) need to go through the uplink of the DVS to the physical switch, through which the VLAN is implemented Communications

VMs in the same port group, if they are in the same host, can communicate directly via DVS

VMs that are in different DVSs but belong to the same VLAN port group can communicate directly over DVS

Question 22 of 33

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

Accelerate the node

Fat nodes

MPI node

Question 23 of 33

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

BGP and OSPF protocols

Device startup configuration

Number of packets lost on the interface

ARP entries

Question 24 of 33

25. If a company provides services with large bursts of traffic, large gaps in business needs between peaks and valleys, and a wide distribution of users, which of the following methods should the company adopt to deploy its services based on cost and user experience considerations?

Intra-city active-active

Two places and three centers

Hybrid cloud

Edge DC

Question 25 of 33

26. 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?

LLDP

NETCONF

HTTP

gRPC

Question 26 of 33

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

Cinder

Heat

Horizon

Keystone

Question 27 of 33

28. Which of the following descriptions of firewalls is wrong when deploying a data center network?

After different security zones are divided on the firewall, the different security zones are isolated by default

Firewalls can be deployed alongside Border Leaf to control secure access to incoming and outgoing traffic

The firewall can be managed through SecoManager, but the service needs to be configured manually

Firewalls can be deployed in active and standby image mode to enhance reliability

Question 28 of 33

29. 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?

Business

Configuration

Hardware

Agreement

Question 29 of 33

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

No more than 50ms

No more than 100ms

No more than 10ms

No more than 1s

Question 30 of 33

31. Which one is wrong in the description of calico, the networking solution for Kubernetes?

Felix is primarily used to store the metadata of the calico and to serve as a communication hub for the various components of the calico

Think of the server running the container as a router, and then run the specified routing protocol on the router

In large-scale networking, a route reflector is used to synchronize pod routes across the network

Use BGP as the routing protocol

Question 31 of 33

32. How many core-layer switches are required in a typical 4-element Fat-Tree topology in an HPC solution?

Question 32 of 33

33. 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?

The device is offline

There is an emergency alarm

Both the device and the link are normal

The link is disconnected and a non-emergency alarm exists

Question 33 of 33

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