According to the disaster tolerance effect, the disaster tolerance level can be divided into: (multiple choice)

Application-level disaster recovery

Business-level disaster recovery

Platform-level disaster recovery

Application-level disaster recovery

Business-level disaster recovery

The following description about the characteristics of the LAN-BASED backup method is incorrect:

The instruction flow passes through the LAN network, the data flow does not pass through the LAN network

The backup proxy will affect the performance of the application server

Backup data is based on LAN, which affects network performance

The backup business needs to be maintained separately, increasing the difficulty of management and maintenance

Xiao Wang, an employee of a company, did the following in the company's storage system: 9:00 Take a snapshot of LUN A and activate it Alive, all the data of the snapshot LUN and the source LUN were modified at 10:00, and the snapshot was rolled back at 11:00.The following instructions are correct? (Multiple choice)

The data in the copy space before COW is 9:00 LUN A

The data of the source LUN is the modified data at 10:00

After the snapshot is rolled back, the data of the source LUN becomes the data of the modified snapshot LUN at 10:00

The data in the copy space before COW is 9:00 LUN A

The data in the copy space before COW is 10:00 LUN A data

The data of the source LUN is the modified data at 10:00

After the snapshot is rolled back, the data of the source LUN becomes the data of the modified snapshot LUN at 10:00

In the Huawei storage system using RAID2.0+ technology, regarding the difference between Thick LUN and Thin LUN, the following Which description is correct? (Multiple choices)

Allocate storage capacity when Thick LUN is created

The storage capacity is not allocated by default when the Thin LUN is created, and the storage capacity is allocated when data is written

Thin LUN makes the entire storage space utilization rate higher

Allocate storage capacity when Thick LUN is created

The storage capacity is not allocated by default when the Thin LUN is created, and the storage capacity is allocated when data is written

Thin LUN is more flexible than Thick LUN, and has better performance during sequential read and write of large IO

Thin LUN makes the entire storage space utilization rate higher

What are the characteristics of big data? (Multiple choice)

Large capacity and fast growth rate

What is wrong with the following description of DAS?

DAS storage space can be fully utilized, storage devices that can be shared by different application servers, fully Leverage idle storage space

DAS refers to the storage device is directly connected to the server through a SCSI cable or Fibre Channel

The data in DAS mode is still scattered, and each application has a set of storage devices.Management is decentralized and cannot be centralized

When the server and the storage device are directly connected, new application requirements arise, only for the newly added server Separate storage device configuration, resulting in repeated investment

DAS storage space can be fully utilized, storage devices that can be shared by different application servers, fully Leverage idle storage space

In the following backup media, the order of unit capacity price from low to high is:

tape, CD/DVD. virtual tape library, SSD

Tape, CD/DVD. SSD. virtual tape library

CD/DVD. magnetic tape, virtual tape library, SSD

tape, CD/DVD. virtual tape library, SSD

CD/DVD. SSD. tape, virtual tape library

What is the description of file-level HyperSnap feature data recovery in Huawei OceanStor storage system, which Are these correct? (Multiple choice)

can restore the original file with logical errors

can restore the original file accidentally deleted

can restore the original file with logical errors

can restore the original file accidentally deleted

can restore the file on the file system with physical failure

Description 1: The file system of the SAN storage is deployed on the storage side, and the file system of the NAS storage is on the host side.Description 2: Dynamic tiered storage can achieve data migration between storage media with different performance

Description 1 is wrong, description 2 is correct

Description 1 is correct, description 2 is correct

Description 1 is correct, description 2 is incorrect

Description 1 is wrong, description 2 is correct

Description 1 error, description 2 error

What are the following errors about OceanStor features?

LUN copy supports incremental LUN copy, and LUN copy should be done offline

Cloning provides physical full copy, incremental copy

Cloning does not support cross-engine LUN cloning, the master-slave LUN must be under the same engine

LUN copy can support data backup and migration within and between arrays (including homogeneous and heterogeneous)

LUN copy supports incremental LUN copy, and LUN copy should be done offline

Which of the following is the correct configuration process for Huawei OceanStor storage system?

Create storage pool -> create LUN -> add mapping

Create storage pool -> add mapping -> create LUN

Create LUN->Create storage pool->Add mapping

Create LUN->Add Mapping->Create Storage Pool

Which mirroring scenarios are mainly used in HyperMirror? (Multiple choices)

Mirroring of two LUNs in this array

Cooperate with the heterogeneous virtualization function to realize the mirroring of the LUN of the heterogeneous array and the array

Cooperate with the heterogeneous virtualization function to realize the mirroring of two heterogeneous LUNs

Mirroring of two LUNs in this array

Cooperate with the heterogeneous virtualization function to realize the mirroring of the LUN of the heterogeneous array and the array

Cooperate with the heterogeneous virtualization function to realize the mirroring of two heterogeneous LUNs

The mirrors of the two LUNs of the volume mirror are not under the same home controller

Which of the following is the advantage of object storage? (Multiple choice)

Object interface, flexible data segmentation

Flat objects, easy to access and expand

Improve data integrity and security

Object interface, flexible data segmentation

External SCSI or file interface

Flat objects, easy to access and expand

Improve data integrity and security

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

Daily regular maintenance projects

The following description is correct: (multiple choice)

OceanStor series products support 8 controllers, and the switching plane between the controllers is IP-based Scale-out interconnection

When the control frame of OCeanStor 5300 is expanded from 2 to 4 controls, it can be directly connected or Networking with switches

OceanStor mid-range storage arrays use IP switches for interconnection, which has cost advantages. PCIe switches are dedicated Switching, the cost is relatively high, mainly used in high-end storage

OceanStor series products support 8 controllers, and the switching plane between the controllers is IP-based Scale-out interconnection

When the control frame of OCeanStor 5300 is expanded from 2 to 4 controls, it can be directly connected or Networking with switches

In the OceanStor series of new-generation storage products, the back-end loops of the same SAS interface card can be mixed and connected Ordinary disk enclosure and high-density disk enclosure

OceanStor mid-range storage arrays use IP switches for interconnection, which has cost advantages. PCIe switches are dedicated Switching, the cost is relatively high, mainly used in high-end storage

Which of the following descriptions of RAID 1 is incorrect?

RAID 1 is verified by XOR algorithm

RAID 1 writes data to each member disk, the data on each member disk is the same

RAID 1 is verified by XOR algorithm

Normally, RAID 1 reads data from data disk and mirror disk

When the data of some member disks is damaged, RAID 1 allows it to quickly recover data from other member disks

What value does thin provisioning technology bring to customers? (Multiple choice)

Improve storage resource utilization

Reduce the initial purchase cost

Reduce the overall TCO of the storage system

Improve storage resource utilization

Reduce the storage space occupied by data

Reduce the initial purchase cost

Reduce the overall TCO of the storage system

What are the following descriptions of the three iSCSI connection methods?

The hardware TOE network card + initiator software connection method reduces the pressure on the host resources

The connection mode of the Ethernet card + initiator software does not occupy the host resources at all

The hardware TOE network card + initiator software connection method reduces the pressure on the host resources

The iSCSI HBA card completes the TCP/IP protocol conversion without occupying host resources at all

TOE network card completes the conversion of iSCSI packets to TCP/IP packets

What is the correct description of the advantages of Huawei RAID 2.0+?

The data is automatically and evenly distributed on the hard disks in the storage pool to avoid uneven heating and cooling of the hard disk, thereby reducing the storage system Overall failure rate

Overcome the performance bottleneck of the traditional RAID reconstruction target disk (hot spare disk), making the reconstruction bandwidth write bandwidth no longer It becomes the bottleneck of the reconstruction speed, which greatly improves the reconstruction speed, reduces the probability of double-disk failure, and improves the storage system.Reliability.

There is no write penalty in RAID2.0+, which overcomes the write penalty in RAID 5 and RAID 6 levels in traditional RAID technology The impact of the penalty on the write performance of the LUN has greatly improved the performance of the LUN

The data on a single LUN is distributed to many different hard disks, avoiding hard disk hot spots, making single LUN performance and The capacity has been greatly improved

The data is automatically and evenly distributed on the hard disks in the storage pool to avoid uneven heating and cooling of the hard disk, thereby reducing the storage system Overall failure rate

Overcome the performance bottleneck of the traditional RAID reconstruction target disk (hot spare disk), making the reconstruction bandwidth write bandwidth no longer It becomes the bottleneck of the reconstruction speed, which greatly improves the reconstruction speed, reduces the probability of double-disk failure, and improves the storage system.Reliability.

There is no write penalty in RAID2.0+, which overcomes the write penalty in RAID 5 and RAID 6 levels in traditional RAID technology The impact of the penalty on the write performance of the LUN has greatly improved the performance of the LUN

The data on a single LUN is distributed to many different hard disks, avoiding hard disk hot spots, making single LUN performance and The capacity has been greatly improved

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

Hot spare space cannot cross engine

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

Hot spare space cannot cross engine

RAID 2.0+ uses an independent hot spare disk

Chunk size and Extent size are not adjustable

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

Description 1: The file system of the NAS is managed by a storage or server that provides resources.Description 2: The file system of the SAN is managed by the host itself.

Description 1 is correct, description 2 is correct

Description 1 is correct, description 2 is incorrect

Description 1 is wrong, description 2 is correct

Description 1 error, description 2 error

Is the following description of cloud computing correct? (Multiple choice)

Cloud computing is dynamically scalable

Cloud computing can provide virtual disk space

Cloud computing is usually used in business systems that require high performance and high response speed

Cloud computing is dynamically scalable

End users of cloud computing need to understand how cloud computing works

Cloud computing can provide virtual disk space

Cloud computing is usually used in business systems that require high performance and high response speed

There are two descriptions about fiber switches below, the correct ones are:Description 1: A port can be in multiple zones.Description 2: A switch can have multiple zones.

description 1 and description 2 are correct

Description 1 pair, description 2 wrong

description 1 wrong, description 2 right

description 1 and description 2 are wrong

Regarding the advantages of DAS, the following description is correct: (multiple choice)

The configuration is more complicated

Huawei H13-611 Practice Test 10 - Free Online Exam Questions 361-400

In the Huawei OceanStor storage system, which of the following descriptions about mapping snapshot LUNs is correct?

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