Regarding the switch used in the Huawei Oceanstor 9000 system, which of the following options are correct?

• A.CE6810 switch provides 10GE/GE access
• B.IS5023 switch provides IB access
• C.The switches used in configuration with Oceanstor 9000 storage system include CE6810, S5752/S5352 and IS5023.
• D.S5700/S5352C switche provides GE access

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What type of backup networking is applicable to all types of storage?

• A.Server-Free
• B.LAN-Base
• C.LAN-Free
• D.Server-Less

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Which of the following statements about SmartQoS is true:
A) Lower-priority I/O can be rejected in favor of higher-priority I/O?
B) SmartQoS uses a queuing system for I/O requests?

• A.Both statements are true.
• B.Statement A is true and Statement B is false.
• C.Statement A is false and Statement B is true.
• D.Both statements are false.

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In the data backup application scenario, which of the following descriptions about the quality of the optical disc storage medium is wrong?

• A.Applicable to scenarios that require high backup capacity.
• B.It is suitable for backup scenarios that do not need to be frequently erased.
• C.Data can be stored for a long time.
• D.It is suitable for scenarios that do not require high backup speed.

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Assume you are the administrator of a storage system and you need to plan storage capacity. The storage device has six disks, and the dab traffic is random and small.
Which of the following is the best capacity plan?

• A.RAID 5 (4D+1P) and Low spare space policy,
• B.RAID 5 (3D+1P) and High spare space policy.
• C.RAID 3 (4D+1P) and Low spare space policy.
• D.RAID 3 (3D+1P) and High spare space policy.

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