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Regarding the four disaster recovery modes of HyperMetro, Hot Standby, Warm Standby, and Cold Standby, is the following statement wrong?

A.

HyperMetro technology can realize that both the main and backup data centers provide services to the outside world. During normal operation, the business of the two data centers can

Do load sharing based on weights, there is no difference between master and backup, and respond to some users separately. The weight can be divided by region, or number

According to the center's service capacity or external bandwidth

B.

Warm standby technology. When a data center failure causes the service to become unavailable, within the specified RTO time, you can

Automatically switch the service to a backup data center

C.

The hot standby business is responded by the main data center. When a data center failure causes the business to be unavailable, the

Within RTO time, the service can be automatically switched to the backup data center

D.

The biggest feature of multi-activity is that it will not cause waste of resources in the data center, and the data center carries application business operations.

SCSI communication is initiated by the initiator and received and processed by the target. When the host and the storage device communicate, the storage device

The side assumes the role of initiator.

A.

TRUE

B.

FALSE

What is wrong about the relationship between FC protocol and SCSI protocol?

A.

FC can transmit SCSI commands, data and status information units by constructing frames

B.

FC or iSCSI protocol is used to carry the SCSI protocol, is an extension of the SCSI protocol

C.

SCSI is the upper layer protocol of FC4, SCSI is a subset of FC protocol

D.

FC is an alternative to SCSI

A company uses the CIFS protocol for file sharing, and uses the Homedir sharing method according to the security policy.

All users access the folder and write space.

A.

TRUE

B.

FALSE

RTO=0 and RPO=0 in the disaster recovery center of the same city.

A.

TRUE

B.

FALSE

A government unit adopts Huawei’s two-site, three-center solution for disaster recovery construction, and its business is mainly concentrated from 8:00 to 18:00.

What is wrong with the following approach?

A.

Production centers and remote disaster recovery centers should use synchronous remote replication

B.

The time period for data synchronization between the production center and the disaster recovery center should be selected when the business volume at night is small

C.

When doing remote replication, a consistency group should be created according to the business of the unit, and related businesses are placed in a consistents

D.

You can use the BCManager software to set the data synchronization period

Description 1: The LUN is composed of multiple Extents in the storage pool.

Description 2: The LUN can contain one or more types of Extent.

A.

Description 1 is correct, description 2 is correct

B.

Description 1 is correct, description 2 is incorrect

C.

Description 1 is wrong, description 2 is correct

D.

Description 1 error, description 2 error

iSCSI encapsulates the SCSI command and data description block into the iSCSI protocol.

A.

TRUE

B.

FALSE

What are the maintenance items of the data center storage administrator? (Multiple choices)

A.

The first maintenance project

B.

Weekly maintenance projects

C.

Daily regular maintenance projects

D.

Real-time maintenance project

Regarding HUAWEI OceanStor storage dynamic tiered storage technology, which of the following descriptions is incorrect?

A.

SmartTier calculates and analyzes the activity of data to determine the activity level of the data

B.

SmartTier automatically and dynamically moves data to different performance storage media according to different activity levels of the data on

C.

SmartTier data movement configuration-based data migration strategy

D.

Data statistics, analysis and data migration of SmartTier features will affect business continuity and data availability

The NAS engine and the storage unit are interconnected by Ethernet switches.

A.

TRUE

B.

FALSE

Regarding the traditional model and cloud computing model, high reliability in the data center and cross-data center disaster recovery methods, the following says

What is wrong?

A.

In the traditional mode, the data center relies on component redundancy to achieve high reliability

B.

In the cloud computing mode, the data center relies on component redundancy to achieve high reliability

C.

In the traditional model, cross-data center disaster recovery is mainly based on copying business data, and the recovery process is complicated and the recovery period is long

D.

In the cloud computing mode, cross-data center disaster recovery is the replication of all data in the business data and operating environment.

Simple recovery process and short recovery period

What is the role of multi-path software? (Multiple choice)

A.

Fault path switching

B.

Load balancing of IO traffic

C, fault path recovery

C.

Data recovery

The following statement is wrong: (multiple choice)

A.

Backup cannot solve the recovery of data corruption

B.

backup to solve the recovery of data loss

C.

Backup cannot solve the retrieval of historical data

D.

Backup can directly take over the business

Which of the following statements about Huawei RAID 2.0+ are correct? (Multiple choice)

A.

Hot spare space cannot cross engine

B.

RAID 2.0+ uses an independent hot spare disk

C.

Chunk size and Extent size are not adjustable

D.

Automatically reserve a certain amount of hot spare space in the hard disk domain according to the hot spare strategy