HCIE-Data Center Real Exam Questions and Answers FREE H12-921_V1.0 Updated on Jun 01, 2024 [Q138-Q159]

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HCIE-Data Center Real Exam Questions and Answers FREE H12-921_V1.0 Updated on Jun 01, 2024 [Q138-Q159]

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HCIE-Data Center H12-921_V1.0 Real Exam Questions and Answers FREE Updated on Jun 01, 2024

H12-921_V1.0 Ultimate Study Guide – PremiumVCEDump

Huawei HCIE-Data Center Network (Written) V1.0 exam is intended to test the candidate’s proficiency in the area of data center network design, implementation, and maintenance. H12-921_V1.0 exam consists of multiple-choice questions, and it is designed to test the candidate’s ability to understand data center network architecture, design, and implementation. It also tests the candidate’s knowledge of SDN and network virtualization.

QUESTION 138
At which layer of headers is the ECN tag located in the message?

TCP layer header

Ethernet layer header

IP Layer Header

UDP layer header

QUESTION 139
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 140
Which of the following descriptions of the open source OpenStack Neutron Agent is wrong?

The Agent processes requests from the PIug-in and provides services to the virtual machine

The L3 Agent provides Layer 3 networking capabilities and network address translation

The DHCP Agent statically assigns IP addresses to virtual machines within the tenant’s network

Generally, each hypervisor host needs to deploy an agent to provide various network services

QUESTION 141
Which of the following objects does the OpenStackFWaaSv model consist of?

Firewall

Firewall Policy

Firewall Rule

FirewalAction

QUESTION 142
In the DCQCN algorithm, which of the following roles sends ECN set packets?

QUESTION 143
Which of the following options is a software platform in the HPC scenario of Huawei’s CloudFabric solution ?

Compiler

Scheduler

Math Library

Operating System

QUESTION 144
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?

Network-wide rollback

Configure rollback

Tenant rollback

Business rollback

QUESTION 145
After installing a CloudFabric data center network based on iMasterNCEFabric, the connectivity test is performed in iMasterNCEFabric, and the result is displayed as “FailedWhich of the following features is recommended for further detection?

Single-path detection

Data consistency check

Business simulation

Loop detection

QUESTION 146
Which of the following parameters does OpenStack use to define a virtual machine specification?

Label

Instance

Datasheet

Flavor

QUESTION 147
Which of the following descriptions of the OpenStack business model is wrong?

Multiple sets of independent AZs can be set up in a DC, and a DC can also be planned as an AZ

A router can only associate one vFW and vice versa

A Project is a unit of resources, and a Project can be deployed within one or more PoDs, and a PoD can host multiple sets of resources

A Project can contain multiple Routers

QUESTION 148
Centralized storage generally provides data storage by the storage array, which of the following components does the storage array contain?

Power module

controller

Hard disk enclosure

Interface modules

QUESTION 149
Which of the following descriptions of open source OpenStack Nova components is wrong?

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

Nova supports creating, modifying, and deleting virtual machines

Nova relies on Keystone for certification services

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

QUESTION 150
Which of the following descriptions of container technology and virtual machine technology is wrong?

Container images are smaller than virtual machines

Containers start up faster than virtual machines

Containers don’t need separate kernels

Containers are more isolated than virtual machines

QUESTION 151
What are the major scenarios covered by Huawei’s CloudFabric solution?

Cloud-network integration scenario

Interface with third-party controllers, such as VMwareNSX controllers

underlay, which is configured through a third-party configuration tool such as Ansible

Computing linkage (virtualization) scenarios

QUESTION 152
Of the basic concepts of computing virtualization technology, which of the following is the operating system running within a VM?

Host OS

Guest Machine

Guest OS

Hypervisor

QUESTION 153
Based on the multiple computing scenarios of Huawei’ s CloudFabric intelligent lossless network solution, what are the correct descriptions of HPC cluster network design?

The HPC cluster network adopts a planar design that considers the business plane, management plane, and computing plane separately

High-performance computing networks are used for communication between computing nodes, requiring networks with low latency and high throughput, and are generally deployed as lossless networks

The service management network is used for cluster management, resource monitoring, and other related business operations, and is usually deployed as a TCP/IP lossy network

Both the high-performance computing network and the storage front-end network must be deployed independently to ensure high network performance and prevent mutual interference

QUESTION 154
Which of the following components is used to manage Huawei’s firewall in the CloudFabric solution cloud-network integration scenario?

OpenStack Cloud Platform

SecoManager

IMaster NCE-Fabric

NMS

QUESTION 155
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?

JSON

pyc

.XML

YANG

QUESTION 156
Which of the following is not included in the PCIe fabric?

Router

Switch

Root Complex

PCIe Endpoint

QUESTION 157
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?

iMaster NCE-FabricInsight

Router

Data center switches

SmartNICs

QUESTION 158
The CPU command defines a hierarchical protection domain, in which of the following levels has the highest authority to directly operate the hardware?

Ring0

Ring1

Ring2

Ring

QUESTION 159
Which of the following options is wrong in the description of the characteristics of the L2 bridging solution in the container network scenario of the CloudFabric solution?

Multiple virtual network interfaces can be configured on a single network interface or VLAN subinterface of a host

Virtual network interfaces have separate MAC addresses and IP addresses

Containers have the same networking capabilities as hosts

NAT is required for cross-node container access