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質問 1：
In the Huawei storage system using RAID 2.0+ technology, regarding the difference between Thick LUN and Thin LUN, which of the following descriptions is correct? (Multiple choice)
A. Allocate storage capacity when Thick LUN is created
B. Thin LUNs are more flexible than Thick LUNs and have better performance when reading and writing large IOs sequentially
C. Thin LUN makes the overall storage space utilization higher
D. When Thin LUN is created, storage capacity is not allocated by default. Storage capacity is allocated only when data is written.
正解：A,C,D
質問 2：
Huawei storage supports the full-mesh architecture.
Which of the following are supported?
A. Back-end full interconnection
B. Full interconnection among controllers
C. Full interconnection using gateways
D. Front-end full interconnection
正解：A,B,D
質問 3：
The RPO in the disaster recovery system measurement indicators is used to measure the business recovery capability of the disaster recovery system
A. False
B. True
正解：B
質問 4：
Which is correct about RAID 10? (Multiple Choice)
A. RAID 10 uses parity disks for data protection
B. RAID 10 hard disk utilization is higher than RAID 1
C. When writing data to RAID 10, there is no need to calculate the check code
D. RAID 10 uses mirroring to provide data redundancy
正解：C,D
質問 5：
The factors that affect the performance of mechanical hard disks do not include ____.
A. Interface speed
B. Seek speed
C. Speed
D. Flash particles
正解：D
質問 6：
In Huawei RAID 2.0+, which is the correct description of chunck and extent?
A. The extent size of different storage pools can be different, but the extent size in the same storage pool is uniform
B. Chunck is the smallest unit of hot data statistics and migration
C. Chunck is the smallest unit for LUN to apply for and release space from the storage pool
D. Extent is the smallest unit for the storage pool to allocate resources from the hard disk domain
正解：A
In the Huawei storage system using RAID 2.0+ technology, regarding the difference between Thick LUN and Thin LUN, which of the following descriptions is correct? (Multiple choice)
A. Allocate storage capacity when Thick LUN is created
B. Thin LUNs are more flexible than Thick LUNs and have better performance when reading and writing large IOs sequentially
C. Thin LUN makes the overall storage space utilization higher
D. When Thin LUN is created, storage capacity is not allocated by default. Storage capacity is allocated only when data is written.
正解：A,C,D
質問 2：
Huawei storage supports the full-mesh architecture.
Which of the following are supported?
A. Back-end full interconnection
B. Full interconnection among controllers
C. Full interconnection using gateways
D. Front-end full interconnection
正解：A,B,D
質問 3：
The RPO in the disaster recovery system measurement indicators is used to measure the business recovery capability of the disaster recovery system
A. False
B. True
正解：B
質問 4：
Which is correct about RAID 10? (Multiple Choice)
A. RAID 10 uses parity disks for data protection
B. RAID 10 hard disk utilization is higher than RAID 1
C. When writing data to RAID 10, there is no need to calculate the check code
D. RAID 10 uses mirroring to provide data redundancy
正解：C,D
質問 5：
The factors that affect the performance of mechanical hard disks do not include ____.
A. Interface speed
B. Seek speed
C. Speed
D. Flash particles
正解：D
質問 6：
In Huawei RAID 2.0+, which is the correct description of chunck and extent?
A. The extent size of different storage pools can be different, but the extent size in the same storage pool is uniform
B. Chunck is the smallest unit of hot data statistics and migration
C. Chunck is the smallest unit for LUN to apply for and release space from the storage pool
D. Extent is the smallest unit for the storage pool to allocate resources from the hard disk domain
正解：A
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