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Huawei H13-611 Practice Test - Questions Answers, Page 37

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Which of the following statements is NOT true for a SAN solution?
Host is a computing system consisting of hard drives or file system that can provide data access and storage.
Regarding Huawei OceanStor storage dynamic tiered storage technology, which of the following descriptions is incorrect?
Statement 1: RAID 2.0+ offers better protection against data loss than traditional RAID and it performs much better Statement 2: To rebuild a RAID 2.0+ protected failed drive takes a lot of time as all drives are involved in the rebuild of the spare disk.
Which of the following statements is NOT true? (Multiple Choice)
Which of the following is NOT the characteristics of the active-active mode of a storage controller?
Which statements are true about RAID 2.0+? (Select All that Apply)
In the scenario where only 2 disks are in the RAID group, which one of the following uses data striping?
During data center construction, a media company purchased storage devices from multiple vendors. The CTO wants to centrally manage these devices through storage virtualization. Which function is NOT provided by storage virtualization?
A device has only one WWNN number, but it can have multiple WWPN numbers.

Question 361

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

A.
The snapshot LUN mapped to the host can only be read, not written
A.
The snapshot LUN mapped to the host can only be read, not written
Answers
B.
The activated snapshot LUN can be mapped to the host for reading and writing
B.
The activated snapshot LUN can be mapped to the host for reading and writing
Answers
C.
The snapshot LUN can only be mapped to the same host as the original LUN
C.
The snapshot LUN can only be mapped to the same host as the original LUN
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D.
The description of all options is correct
D.
The description of all options is correct
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Suggested answer: B

Question 362

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

A.
Data-level disaster recovery
A.
Data-level disaster recovery
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B.
Platform-level disaster recovery
B.
Platform-level disaster recovery
Answers
C.
Application-level disaster recovery
C.
Application-level disaster recovery
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D.
Business-level disaster recovery
D.
Business-level disaster recovery
Answers
Suggested answer: A, C, D

Question 363

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

A.
The instruction flow passes through the LAN network, the data flow does not pass through the LAN network
A.
The instruction flow passes through the LAN network, the data flow does not pass through the LAN network
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B.
The backup proxy will affect the performance of the application server
B.
The backup proxy will affect the performance of the application server
Answers
C.
Backup data is based on LAN, which affects network performance
C.
Backup data is based on LAN, which affects network performance
Answers
D.
The backup business needs to be maintained separately, increasing the difficulty of management and maintenance
D.
The backup business needs to be maintained separately, increasing the difficulty of management and maintenance
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Suggested answer: A

Question 364

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In the LAN-Base networking, both the service flow and the data flow take the LAN network, and occupy a large bandwidth.

A.
TRUE
A.
TRUE
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B.
FALSE
B.
FALSE
Answers
Suggested answer: A

Question 365

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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)

A.
The data in the copy space before COW is 9:00 LUN A
A.
The data in the copy space before COW is 9:00 LUN A
Answers
B.
The data in the copy space before COW is 10:00 LUN A data
B.
The data in the copy space before COW is 10:00 LUN A data
Answers
C.
The data of the source LUN is the modified data at 10:00
C.
The data of the source LUN is the modified data at 10:00
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D.
After the snapshot is rolled back, the data of the source LUN becomes the data of the modified snapshot LUN at 10:00
D.
After the snapshot is rolled back, the data of the source LUN becomes the data of the modified snapshot LUN at 10:00
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Suggested answer: A, C, D

Question 366

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What technology is used to convert Thick LUN and Thin LUN?

A.
clone
A.
clone
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B.
LUN migration
B.
LUN migration
Answers
C.
LUN copy
C.
LUN copy
Answers
D.
Volume mirroring
D.
Volume mirroring
Answers
Suggested answer: A

Question 367

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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)

A.
Allocate storage capacity when Thick LUN is created
A.
Allocate storage capacity when Thick LUN is created
Answers
B.
The storage capacity is not allocated by default when the Thin LUN is created, and the storage capacity is allocated when data is written
B.
The storage capacity is not allocated by default when the Thin LUN is created, and the storage capacity is allocated when data is written
Answers
C.
Thin LUN is more flexible than Thick LUN, and has better performance during sequential read and write of large IO
C.
Thin LUN is more flexible than Thick LUN, and has better performance during sequential read and write of large IO
Answers
D.
Thin LUN makes the entire storage space utilization rate higher
D.
Thin LUN makes the entire storage space utilization rate higher
Answers
Suggested answer: A, B, D

Explanation:

Resolution: A LUN can be created as a Thick LUN and Thin LUN. Thick LUN will be allocated from the storage pool in advance Storage capacity, even if no user data is stored on the Thick LUN. Thin LUNs are not pre-allocated from the storage pool For storage capacity, only when user data is written to the thin LUN will the actual storage capacity be allocated from the storage pool.

Sequential read: Since thin LUN dynamically allocates storage resources according to the actual needs of users, space allocation exists in time Discontinuity, so it will affect the continuity of the space mapped on the disk. When thick LUN is created, the system Automatic resource allocation technology allocates storage resources from storage resources at one time, which maximizes its mapping to Space continuity on the disk. Sequential reading of mechanical disks is more efficient, so thick LUNs perform better when reading sequentially For thin LUN.

Question 368

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

A.
Write once, modify many times
A.
Write once, modify many times
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B.
The value of data is uncertain
B.
The value of data is uncertain
Answers
C.
Large capacity and fast growth rate
C.
Large capacity and fast growth rate
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D.
Long storage time
D.
Long storage time
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Suggested answer: B, C, D

Question 369

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What is wrong with the following description of DAS?

A.
DAS refers to the storage device is directly connected to the server through a SCSI cable or Fibre Channel
A.
DAS refers to the storage device is directly connected to the server through a SCSI cable or Fibre Channel
Answers
B.
The data in DAS mode is still scattered, and each application has a set of storage devices.Management is decentralized and cannot be centralized
B.
The data in DAS mode is still scattered, and each application has a set of storage devices.Management is decentralized and cannot be centralized
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C.
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
C.
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
Answers
D.
DAS storage space can be fully utilized, storage devices that can be shared by different application servers, fully Leverage idle storage space
D.
DAS storage space can be fully utilized, storage devices that can be shared by different application servers, fully Leverage idle storage space
Answers
Suggested answer: D

Question 370

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

A.
Tape, CD/DVD. SSD. virtual tape library
A.
Tape, CD/DVD. SSD. virtual tape library
Answers
B.
CD/DVD. magnetic tape, virtual tape library, SSD
B.
CD/DVD. magnetic tape, virtual tape library, SSD
Answers
C.
tape, CD/DVD. virtual tape library, SSD
C.
tape, CD/DVD. virtual tape library, SSD
Answers
D.
CD/DVD. SSD. tape, virtual tape library
D.
CD/DVD. SSD. tape, virtual tape library
Answers
Suggested answer: C
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