H31-522 Huawei Certified Network Professional –Cloud DataCentre Operations Questions and Answers

VRM

FusionSphere OpenStack OM

FusionStorage

ServiceCenter

TRUE

FALSE

Data access devices may have different ownership characteristics.

Data access devices have different storage formats.

Data access devices use different applications or clients and thus may have different security characteristics.

Data access devices use different operating systems and thus may run different applications.

TRUE

FALSE

Single-server deployment

Distributed deployment

Local HA system

Remote HA system

TRUE

FALSE

TightVNC depends on the Java (TM) plug-in.

noVNC does not depend on the Java (TM) plug-in and cannot restart and stop a VM.

A 64-bit browser can run the 32-bit Java CTM) plug-in.

The drive management function of noVNC depends on the Java platform.

TRUE

FALSE

eSight supports the hierarchical deployment, relieving the management pressure of large-scale networks.

Hierarchical deployment of eSight includes upper-level eSight and lower-level eSight.

Hierarchical deployment of eSight breaks through the resource management capability and performance limitation of single eSight site.

In hierarchical deployment of eSight, the version of the upper-level eSight can be different from that of the lower-level eSight.

Backup helps retrieve lost data.

Backup helps recover damaged data.

Backup helps find historical data.

Backup ensures business continuity.

TRUE

FALSE

TRUE

FALSE

VHD

OVF

OVA

ISO

Middleware

Database

Security

Development tool

The storage_dataO plane is configured, but no backend storage is configured for Cinder.

The IP address and storage service IP address of storage_data0 plane are not in the same network segment..

Backend storage configured for Cinder is incorrect.

The storage network plane is not configured.

Resource management

Routine monitoring

SSO

Real-time monitoring

TRUE

FALSE

TRUE

FALSE

TRUE

FALSE

system

vnc

cps-web

Internet

Main mode

Aggressive mode

Fast mode

Passive mode

PaaS is targeted at application program developers, and SaaS is targeted at Internet users and small- and medium- sized enterprises.

PaaS is a technology to implement SaaS.

Cloud computing can only provide the SaaS services or PaaS services at the same time.

PaaS and SaaS are complementary and facilitate each other.

RPO is short for recovery point objective.

RPO is measured based on data.

RPO is the time taken to recover data.

In theory, the shorter the RPO is, the better.

TRUE

FALSE

SaaS

IaaS

PaaS

ITaaS

Server

Switch

Firewall

VM

TRUE

FALSE

When you power on FusionSphere, power on the only AZ in which the keystone service is deployed first.

When you expand local physical storage used by a host, you need to migrate all VMs from the target host to other normal hosts.

FusionSphere supports automatic and manual backup for the management data of each service.

The controller node cannot be expanded.

Enhances compatibility so that mainstream virtualization platforms and operating systems are supported.

Supports image conversion so that other image formats can be converted to Huawei image formats.

Assesses the migration feasibility based on the source environment check items to determine whether the host at the source end meets migration requirements in advance.

Provides maintainability and one-click collection.

Privilege VMs

Common VMs

Security VMs

Management VMs

TRUE

FALSEs

Eight kernels from a physical CPU are provided for a VM as eight vCPUs.

One physical CPU provides five kernels, and another physical CPU provides three kernels.

One physical CPU provides four kernels, and another physical CPU provides four kernels.

Four physical CPUs of the host provide eight vCPUs of the VM, with each physical CPU providing two kernels.

FusionSphere OpenStack

Hyper-V

KVM

Xen

FusionCube

Update tool

Fusion Care

Automatic web UI installation and deployment tool

cinder-driver

cinder-api

cinder-scheduler

cinder-volume

1

2

5

10

TRUE

FALSE

Requirements are transferred through documents, which lacks communication.

The testing automation level is low, quality control and assurance are not complete, and the feedback is slow.

Manual O & M is tedious, complicated, and error-prone. There may be a large number of faults, and the operation duration is long.

The IT staff turnover rate is high, and skills are hard to transfer.

Understand related supervision regulations.

Run standard security software.

Encrypt everything.

Understand the cloud storage architecture in use.

Services are migrated from traditional data centers to cloud data centers.

Traditional data centers are taken over by cloud data centers after being cloudified.

Services are migrated from the existing cloud data centers to other cloud data centers.

Services are migrated from cloud data centers to traditional data centers.

Instant report

Common report

Periodic report

Customized report

TRUE

FALSE

In the LAN-Base network topology, backup data and service data are transferred over different networks.

In the LAN-Free network topology, backup data and service data are transferred over different networks.

In the Server-Free network topology, backup data and service data are transferred over the same network.

The Server-Free network topology exerts the greatest impact on the service data among the three network topologies.

TRUE

FALSE

Security responsibilities are shifted to other companies to shoulder, which belittles some disadvantages like high cost and low flexibility.

Flexible service provision and SECaaS service providers ' extensive knowledge and high efficiency lead to a higher service flexibility and continuity.

Security software standardization makes SaaS outsourcing infeasible.

SaaS applications, excluding antimalware software and anti-spam applications, are sophisticated in many fields and can be used widely.

Different types of data may be mixed in the same physical machine.

After a VM is transferred from a physical server to another one, no alarms or traces for auditing are generated.

Performance is reduced.

The customer ' s VMs are hardened.

Security VM

Guest VM

Host VM

User VM

Internet service providers

Cloud service providers

Customers

Data specialists

TRUE

FALSE

In the service lifecycle, tracking investment works with other service management processes to ensure appropriate investment return.

It clarifies the service definition and ensures service achievements, thereby all design, transition, and operation activities are consistent with service values.

It builds an official complaint and upgrade procedure for customers.

Service combination is clear, and service requirements satisfied and service achievements supported by each service are clarified.

Security logs

System logs

Device logs

Background run logs

Service catalog and portal

Service security

Service strategy

Service delivery management

Deduplication is categorized as source-end deduplication and target-end deduplication.

Source-end deduplication is implemented as follows: At the source end, hash comparison is performed for data blocks to be transferred. If a data block has been transferred, only the corresponding hash index value will be transferred.

Target-end deduplication is implemented as follows: Data is transferred from the source end to the target end. If the target end contains the same data, data duplicates will be deleted, and only the unique data remains.

Both source-end deduplication and target-end deduplication reduce the host CPU performance.

TRUE

FALSE

Real-time monitoring

Historical monitoring

In-band monitoring

Out-band monitoring

To create a snapshot, the current disk is set to read-only. The system automatically creates an incremental disk in the data store where the disk locates.

An incremental disk records the differences between the current state of the disk and the state of the disk in the last snapshot.

Multiple snapshots can be created for one VM. If a VM is being restored using a snapshot, other snapshots of the VM are not affected.

Snapshots can be automatically deleted.

Transparent right clauses in the contract.

International laws.

Customers never have any right to audit a cloud service provider.

Auditing right clauses in the contract.

TRUE

FALSE

External_OM

External_API

Internal_Base

storage_data0

TRUE

FALSE

NetApp

IBM

EMC

HP

TRUE

FALSE

TRUE

FALSE

data store needs to be created on a specified storage device. Only one data store can be created for one storage device.

data store can be associated with multiple hosts and provide resources for the host. A host can use multiple data stores.

storage device can be used only when it is added into a data store.

data store can be used to store VM disks, snapshot files, and VM image files.

Upload an image from a local PC and register it.

Upload an image from an NFS server and register it.

Upload an image from FusionSphere OpenStack and register it.

Upload an image from an FTP server and register it.

You must first specify the availability zone (AZ) to which the host group belongs and then select hosts from the AZ to create a host group.

If the resource pool is to interconnect with FusionCompute, the AZ needs to be consistent with the AZ configured in the FusionCompute storage cluster.

The external network is used to connect to the network outside the system and cannot be the Internet.

fc-nova-computeXXX is in fact a group of FusionCompute computing clusters interconnected with FusionSphere OpenStack.

Domain user

Interface interconnection user

Local user

Third-party user

TRUE

FALSE

Storage virtualization

Server virtualization

Cloud data center

NFVI

TRUE

FALSE

CMS is a part of the service knowledge management system.

CMS must contain all service data covering employees, providers, location, service units, customers, and users.

CMS contains tools used to collect, store, manage, upgrade, and display configuration items and their relationships.

CMS contains information of events, problems, known issues, changes, and release.

Automatic device discovery

Manual creation of a device

Manual import of devices in batches

Built-in device template

TRUE

FALSE

Cinder is a storage resource management system which provides persistent block storage resources for VMs.

Cinder can encapsulate backend storage resources and provide unified APIs for external users.

Cinder manages volumes, including volumes, volume types, and volume snapshots.

Cinder can be used to attach volumes but cannot separate volume snapshots.

The relationship between providers and customers changes from the seller-buyer relationship to service relationship.

Easy to use without restrictions of space and location

Multi-tenancy and customizability

The deployment period of the SaaS software project is long and the risk is high.