Select the correct statements that describes the properties of Distributed Storage Architecture.
(Multiple Choice)

• A.The storage nodes are non centralized.
• B.Non concurrent I/O access.
• C.Concurrent I/O access.
• D.The storage nodes are centralized.

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Situation: Disk Domain A has 40 disks, Disk Domain B has 20 disks. True or False: the rebuild time for a failed disk in Disk Domain B is longer than for a failed disk in Disk Domain A.

• A.FALSE
• B.TRUE

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Which is the correct formation order of the following elements in RAID 2.0+?

• A.LD -> CKG -> CK -> Extent -> LUN
• B.LD -> CK -> CKG -> Extent -> LUN
• C.LD -> Extent -> CKG -> CK -> LUN
• D.LUN -> CK -> CKG -> Extent -> LD

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Match the correct functionalities together: (1) IaaS (2) Hybrid (3) SaaS (a) Combination of public and private (b) Applications are hosted externally (c) Hardware is outsourced.

• A.1-b; 2-a; 3-c
• B.1-a; 2-b; 3-c
• C.1-c; 2-a; 3-b
• D.1-b; 2-c; 3-a

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Which of the following descriptions of RAID 1 is incorrect?

• A.When the data of some member disks is damaged, RAID 1 allows it to quickly recover data from other member disks
• B.RAID 1 is verified by XOR algorithm
• C.RAID 1 writes data to each member disk, the data on each member disk is the same
• D.Normally, RAID 1 reads data from data disk and mirror disk

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