Winter Special Sale Limited Time 60% Discount Offer - Ends in 0d 00h 00m 00s - Coupon code: 713PS592

H12-921_V1.0 HCIE-Data Center Network (Written) V1.0 Questions and Answers

Questions 4

In the cross-device forwarding scenario, which of the following VXLAN segments is used to obtain EPG group information between the source VM and the destination VM on the same device?

The transmission of?

Options:

A.

VNI

B.

BD

C.

Group Policy ID

D.

EPGID

Buy Now
Questions 5

After a CloudFabric data center network is changed, you can use which of the following functions of iMaster NCE-FabricInsight can be used to perform ARP on the device before and after the change ? Item comparison analysis

Options:

A.

Intelligence at the edge

B.

Data plane intent verification

C.

Network health

D.

Device snapshot comparison

Buy Now
Questions 6

Which of the following descriptions of VAS resource pooling deployment is correct in the CloudFabric solution?

Options:

A.

Centralized VAS resource pools do not support active/standby deployments and are prone to single points of failure

B.

When a distributed VAS resource pool is deployed, a single point of failure is avoided because VAS resources exist in each fabric

C.

A centralized VAS resource pool refers to the construction of an independent VAS resource pool outside the business Fabric region, and each Fabric shares resources to maximize resource utilization

D.

Distributed VAS resource pool refers to planning an independent VAS resource pool in each Fabric, and forming an overall VAS resource pool through a large Layer 2 network , with each Fabric interval VAS resource sharing

Buy Now
Questions 7

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

Options:

A.

Cinder

B.

Heat

C.

Horizon

D.

Keystone

Buy Now
Questions 8

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

Options:

A.

Cinder is generally used for long-term storage of persistent type of data at rest

B.

Cinder provides object storage services

C.

Swift provides block storage services

D.

Swift is generally used to store virtual machine images, data backups, etc

Buy Now
Questions 9

Which of the following descriptions of distributed training is wrong?

Options:

A.

In data parallelism, each computing node trains the complete model based on local data

B.

Distributed training can support the training of massive data and complex models

C.

Data parallelism and model parallelism are common distributed training methods

D.

In model parallelism, each compute node will only interact with the trained sub-model and obtain the final model through model aggregation

Buy Now
Questions 10

In which of the following scenarios would a physical hard disk be converted into a block device?

Options:

A.

Virtual machines access remote centralized storage devices via NFS

B.

Virtual machines access remote centralized storage devices via iSCSI

C.

The computer uses a local hard disk

D.

Virtual machines access remote centralized storage devices via FC-SCSI

Buy Now
Questions 11

Which of the following is NOT part of the iMaster NCE-FabricInsight network data plane intent verification process?

Options:

A.

Traffic analysis

B.

Verification of intent

C.

Data Collection

D.

Network modeling

Buy Now
Questions 12

In which of the following storage network architectures does the storage array provide file storage to the server?

Options:

A.

IP SAN

B.

FC SAN

C.

DAS

D.

NAS

Buy Now
Questions 13

In the CloudFabric network service open programmable overall solution, which component is responsible for southbound interconnection with heterogeneous network devices?

Options:

A.

AOC

B.

FabricInsight

C.

Business systems

D.

Runbook

Buy Now
Questions 14

Which of the following descriptions of open source OpenStack Nova components is wrong?

Options:

A.

When Nova creates a virtual machine, it calls the network interface of Glance to create the virtual machine

B.

Nova supports creating, modifying, and deleting virtual machines

C.

Nova relies on Keystone for certification services

D.

Nova is used to provide virtual computing resource services for the OpenStack cloud platform

Buy Now
Questions 15

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

Options:

A.

Accelerate the node

B.

Fat nodes

C.

MPI node

D.

Log in to the node

Buy Now
Questions 16

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?

Options:

A.

Freezer

B.

Watcher

C.

Keystone

D.

Zun

Buy Now
Questions 17

What are the correct descriptions of VXLAN Overlay multicast in the following descriptions?

Options:

A.

BGP NG MVPN carries I-PMSI information for I-PMSI tunnel establishment

B.

There is no need to deploy multicast in the underlay

C.

When deploying multicast using PIM-SM mode, separate RPs need to be deployed on both the underlay and the overlay

D.

The VXLAN tunnel can still be configured as headend replication without special configuration

Buy Now
Questions 18

Which of the following is not included in the mainstream PCIe slot width?

Options:

A.

x2

B.

x1

C.

x4

D.

x16

Buy Now
Questions 19

Which of the following does not support cross-site L2 interoperability in the Multi-Site interconnection scenario of the CloudFabric solution?

Options:

A.

VLAN Hand-off

B.

L3 Underlay

C.

End-to-end VXLAN

D.

Segment VXLAN

Buy Now
Questions 20

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

Options:

A.

memory

B.

hard disk

C.

flash memory

D.

CPU

Buy Now
Questions 21

Which of the following descriptions of headroom caching is correct in CloudFabric lossless networking?

Options:

A.

Headroom cache space actually occupies the Guaranteed cache of the inbound queue

B.

The headroom cache room is fixed at 20M

C.

The headroom cache is used to store packet D. received from the time when the queue sends a PFC backpressure notification packet to before the upstream device stops sending packets

Headroom cache space actually occupies the shared cache of the outbound queue

Buy Now
Questions 22

In the open-source OpenStack business model, which of the following is the mapping between the Router and the Network?

Options:

A.

1:1

B.

1:N

C.

N:1

D.

N:N

Buy Now
Questions 23

Which of the following components of the CloudFabric Intelligent Lossless Network Solution for Multi-Computing Scenarios needs to support lossless features such as AI ECN to improve network performance?

Options:

A.

iMaster NCE-FabricInsight

B.

Router

C.

Data center switches

D.

SmartNICs

Buy Now
Questions 24

In the CloudFabric Cloud-Network Integration OpenStack scenario, two dual-stack VMs in a company's intranet are in the same VPC, and they want to send files to each other (without going through the firewall). In this case, when you create a subnet on the OpenStack cloud platform, you do not need to specify which of the following parameters?

Options:

A.

Subnet name

B.

Associated routes

C.

Network address

D.

IP version

Buy Now
Questions 25

Which of the following descriptions of lossless network prioritization design for multivariate computing is wrong?

Options:

A.

Huawei data center switches support the 8021p priority-based PFC function

B.

Huawei data center switches support the PFC function based on DSCP priority

C.

You need to plan a separate priority queue for RoCE traffic and enable the PFC feature

D.

In a VXLAN lossless network, switching devices can directly schedule traffic based on the priority of the IP header in the inner layer of VXLAN

Buy Now
Questions 26

In the Huawei CloudFabric data central network, if the VPC subnet is communicated through the iMasterNCEFabric agency, which of the following configurations will be delivered by the controller to the physical device?

Options:

A.

Create a BD and associate L2VNI

B.

Create a Layer 2 sub-interface and associate it with the corresponding BD

C.

Create a VRF for the VPC

D.

Create a gateway VBDIF port and associate the VRF

Buy Now
Questions 27

When service provisioning fails in the CloudFabric data center network, which of the following functions can be used to simulate service provisioning in iMaster NCE-Fabric to view specific problems

Options:

A.

Service connectivity testing

B.

Business simulation

C.

Tenant snapshot rollback

D.

Fault alarms

Buy Now
Questions 28

As shown in the figure, in the Multi-Site scenario of the CloudFabric solution, traffic destined for VM2 to VM1 passes through the two fabrics in the order of which of the following options GW's VRF?

H12-921_V1.0 Question 28

Options:

A.

VPC2 VRF->VPC1 VRF

B.

VRF2->VRF1

C.

VRF2->VPC1 VRF

D.

VPC2 VRF->VRF 1

Buy Now
Questions 29

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?

Options:

A.

Etcd

B.

Bird

C.

CNI Plugin

D.

VSwitch

Buy Now
Questions 30

By default, iMaster NCE-FabricInsight can predict the interface traffic trend at which of the following times?

Options:

A.

3 months

B.

2 months

C.

1 month

D.

4 months

Buy Now
Questions 31

Which of the following hard disk media does not support the NVMe interface protocol in mainstream server scenarios?

Options:

A.

SCM

B.

SSD

C.

DRAM

D.

HDD

Buy Now
Questions 32

Which of the following components is used to manage Huawei's firewall in the CloudFabric solution cloud-network integration scenario?

Options:

A.

OpenStack Cloud Platform

B.

SecoManager

C.

IMaster NCE-Fabric

D.

NMS

Buy Now
Questions 33

When configuring micro-segmentation in an automated orchestration mode on iMaster NCE-Fabric, which of the following attributes can be used to create an EPG??

Options:

A.

Based on MAC address or IP address

B.

According to the port number

C.

Prefix and suffix based on the name of the virtual machine

D.

Prefix and suffix based on the hostname

Buy Now
Questions 34

The CPU command defines a hierarchical protection domain, in which of the following levels has the highest authority to directly operate the hardware?

Options:

A.

Ring0

B.

Ring1

C.

Ring2

D.

Ring

Buy Now
Questions 35

Which logical network model of iMaster NCE-Fabric can be mapped to a Bridge Domain in VXLAN?

Options:

A.

LogicLink

B.

LogicSwitch

C.

LogicVAS

D.

LogicRouter

Buy Now
Questions 36

There are multiple modes for Server NIC Bond, which of the following modes supports dynamic link aggregation?

Options:

A.

Bond3

B.

Bond 1

C.

Bond4

D.

Bond2

Buy Now
Questions 37

How many switches do PFC deadlock detection need to work together?

Options:

A.

Three units are synergistic

B.

It is completed independently by a single unit

C.

Two units work together

D.

Four units are synergistic

Buy Now
Questions 38

The following: "Support docking with the community or third-party commercial OpenStack + third-party cloud management platform." "What level of the CloudFabric solution architecture is described?"

Options:

A.

Network service layer

B.

Business presentation/collaboration layer

C.

Network Analysis/Control Layer

D.

Compute the access layer

Buy Now
Questions 39

Which of the following descriptions of the business chain is wrong?

Options:

A.

In the NSH implementation, the service chain function is implemented by inserting the NSH header into VXLAN packets

B.

In the PBR implementation, the controller delivers PBR diversion policy routes to SFF and SC nodes hop-by-hop through NETCONF

C.

In PBR implementation, the controller delivers filtering and redirection policies to the SC nodes to selectively redirect service traffic

D.

In the NSH implementation, the SF node must support NSH

Buy Now
Questions 40

Which of the following components of open source OpenStack has a core function of providing monitoring services?

Options:

A.

Ceilometer

B.

Manila

C.

Trove

D.

Neutron

Buy Now
Questions 41

As shown in the figure in the Multi-PoD solution of the CloudFabric solution, in the active/standby egress scenario, when the Border Leaf is the primary failure, the VM belonging to VPC1 is located What traffic path will be used to access the external network?

H12-921_V1.0 Question 41

Options:

A.

1

B.

2

C.

3

D.

4

Buy Now
Questions 42

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?

Options:

A.

MPI_Scatter

B.

MPI_AllReduce

C.

MPI_Gather

D.

P2P

Buy Now
Questions 43

Which one is wrong in the description of the initial IPV6 transformation plan of the data center network, "IPv6 single stack in the new Internet access area"?

Options:

A.

This solution will cause existing business interruption and can be used in scenarios that are not sensitive to service interruption

B.

This solution can quickly provide IPv6 services and smoothly evolve to the long-term goal of "network-wide single-stack".

C.

You need to add AAAA records on the DNS6 server and publish them externally

D.

In the IPv6 Internet access area, you need to add an IPv6 access line to connect with the ISP to support IPv6 user access

Buy Now
Questions 44

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

Options:

A.

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

B.

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

C.

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

D.

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

Buy Now
Questions 45

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

Buy Now
Questions 46

Which of the following options is NOT part of the application layer in the AI industry?

Options:

A.

Machine learning

B.

Robots

C.

Autonomous driving

D.

Smart speaker

Buy Now
Questions 47

As shown in the diagram, when DCs are interconnected via VLAN Hand-off, which of the following describes the error?

Options:

A.

DCI-GW requires VXLAN support

B.

DCI-GW does not learn the routes between the service host and the network

C.

Transmission of common VLAN packets between the Fabric-GW and the DCI-GW

D.

The DCI network only passes the underlay route for the DCI-GW

Buy Now
Questions 48

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

Options:

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 VMM

Buy Now
Questions 49

Which of the following is not included in an open-source OpenStack node?

Options:

A.

Control nodes

B.

Compute nodes

C.

Service nodes

D.

Network nodes

Buy Now
Questions 50

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

Options:

A.

No more than 50ms

B.

No more than 100ms

C.

No more than 10ms

D.

No more than 1s

Buy Now
Questions 51

Which of the following is responsible for managing network resources in the core project of OpenStack resource management?

Options:

A.

Nova

B.

Swift

C.

Ironic

D.

Neutron

Buy Now
Questions 52

After the dual-stack transformation of the Internet access area of the data center network, which of the following methods can the network egress choose to interconnect with the operator's IPv network?

Options:

A.

Static IPv6 routes

B.

OSPFv3

C.

IBGP4+

D.

EBGP+

Buy Now
Questions 53

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?

Options:

A.

Intra-city active-active

B.

Two places and three centers

C.

Hybrid cloud

D.

Edge DC

Buy Now
Questions 54

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?

Options:

A.

Active aging time

B.

ACL Number

C.

Whether the VXLAN packet is matched

D.

Whether to match TAG packets with a layer 1 VLAN

Buy Now
Questions 55

In Huawei's CloudFabric solution, which of the following interfaces does iMasterNCEFabricInsight use to collect information such as device status alarms and logs?

Options:

A.

NETCONF

B.

RESTful

C.

SNMP

D.

Syslog

Buy Now
Questions 56

Write a Python script to construct a NETCONF message using the ncclient library and configure the system time of the device by calling the API in which of the following options?

Options:

A.

Intent API

B.

Web Services API

C.

Atomic APIs

D.

Business APIs

Buy Now
Questions 57

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?

Options:

A.

The device is offline

B.

There is an emergency alarm

C.

Both the device and the link are normal

D.

The link is disconnected and a non-emergency alarm exists

Buy Now
Questions 58

Which concept in the MDC orchestration model is mapped to the TGW routing table in the AWS public cloud model in the CloudFabric solution?

Options:

A.

TransitRouter

B.

TGW Router

C.

TransitVAS

D.

External gateways

Buy Now
Questions 59

Of the basic concepts of computing virtualization technology, which of the following is the operating system running within a VM?

Options:

A.

Host OS

B.

Guest Machine

C.

Guest OS

D.

Hypervisor

Buy Now
Questions 60

Which of the following options can be deployed in a lossless CloudFabric network to avoid the header blocking problem (HeadOfLineBlockingHOLB occurs?).

Options:

A.

PFC Deadlock Prevention

B.

PFC deadlock detection

C.

AI ECN

D.

INOF

Buy Now
Questions 61

Which of the following descriptions of data center interconnection solutions is wrong?

Options:

A.

The VLAN hand-off mode enables L2 communication between data centers

B.

In SegmentVXLAN mode, EVPN routes are transmitted in a three-stage mode to implement L3 communication between data centers

C.

The E2E EVPNVXLAN mode directly establishes a VXLAN tunnel between the VTEPs in two data centers

D.

After a VXLAN is established in the local mode in the segment VXLAN mode, packets are encapsulated with the local DCILeaf when they arrive at the local DCI Leat and are sent to the peer DCI Leat VNI, not the VNI of the peer DCI Leaf

Buy Now
Questions 62

iMasterNCEFabricInsight network snapshot analysis function, which of the following objects is supported for analysis?

Options:

A.

OSPF Protocol

B.

Runtime configuration

C.

ARP entries

D.

Number of packets lost on the interface

Buy Now
Questions 63

Which of the following NoF implementations is Huawei's CloudFabricNoF solution?

Options:

A.

NVMe over RoCE

B.

NVMe over FC

C.

NVMe over TCP

D.

NVMeoverUDP

Buy Now
Questions 64

In the CloudFabric cloud-network integration scenario, what are the correct items described below?

Options:

A.

The IP address range corresponding to the "external gateway" on IMaster NCE-Fabric needs to be the same as the "external network" created by OpenStack "Unanimous

B.

If you need to access different VMs within the same VPC within the same VPC , you must create an external network on OpenStack

C.

If you want to access the Internet, you need to create an external network on OpenStack and an external gateway on iMaster NCE-Fabric

D.

The name of the "external gateway" on IMaster NCE-Fabric needs to be the same as the name of the "external network" created by OpenStack, or OpenStack creates a prefix for the name of the "external network"

Buy Now
Questions 65

When using one of the following network modes, the communication between the Docker machine and the external network needs to be realized through NAT?

Options:

A.

None

B.

Host

C.

Bridge

D.

Container

Buy Now
Questions 66

In which of the following storage network architectures does the storage array provide file storage to the server?

Options:

A.

DAS

B.

IP SAN

C.

NAS

D.

FC SAN

Buy Now
Questions 67

In the open and programmable overall solution of CloudFabric network services, AOC is responsible for the unified management of heterogeneous network devices, and it uses which of the following options to implement this function based on the file type?

Options:

A.

JSON

B.

pyc

C.

.XML

D.

YANG

Buy Now
Questions 68

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

Options:

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 abnormal

C.

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

D.

Service rollback supports single-point service recovery

Buy Now
Questions 69

In the Multi-Site solution of the CloudFabric solution, if you want to achieve Layer 2 communication between sites, which of the following interconnection methods can be selected?

Options:

A.

Underlay way

B.

VLAN Hand-off

C.

End-to-end VXLAN

D.

Segment VXLAN

Buy Now
Questions 70

Which of the following descriptions of NAT64 technology is wrong?

Options:

A.

Static NAT64 requires static configuration of IPv6 and IPv4 address mapping, which does not require refresh or aging

B.

The well-known NAT64 prefix 64: FF9B::/96 already exists by default and does not need to be configured

C.

The custom NAT64 prefix can be of any length, which can be 32, 36, 40, 44, etc

D.

The NAT64 device determines whether the packet performs NAT64 translation based on the IPv6 prefix of the destination address of the IPv6 data packet

Buy Now
Questions 71

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 ? ?

Options:

A.

Service Policy

B.

Network Policy

C.

Service Manager

D.

Network Manager

Buy Now
Exam Code: H12-921_V1.0
Exam Name: HCIE-Data Center Network (Written) V1.0
Last Update: Dec 2, 2024
Questions: 239

PDF + Testing Engine

$66  $164.99

Testing Engine

$50  $124.99
buy now H12-921_V1.0 testing engine

PDF (Q&A)

$42  $104.99
buy now H12-921_V1.0 pdf