Calriion Solutions Specialist Exam E20-520 (10)

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26. Which feature describes the PSM LUN on the CX Series or later array?
A. Both SPs access a single copy
B. Resides on the first nine drives
C. Viewable in Navisphere Manager
D. Created after array initialization by the administrator
Answer: A

27. On a CLARiiON, which RAID technology provides the best performance with a workload of random writes of 4 KB or less?
A. RAID 1/0
B. RAID 3
C. RAID 4
D. RAID 5
Answer: A

28. Which statement describes the difference between RAID 1/0 and RAID 0+1 when a disk fails and is replaced?
A. RAID 1/0 rebuilds the affected stripe. RAID 0+1 rebuilds the entire disk group.
B. RAID 1/0 rebuilds the affected disk only. RAID 0+1 rebuilds the affected stripe.
C. RAID 1/0 rebuilds the affected stripe. RAID 0+1 rebuilds the affected disk only.
D. RAID 1/0 rebuilds the entire disk group. RAID 0+1 rebuilds the affected stripe only.
Answer: B