This set of SAN questions and answers helps anyone preparing for EMC ISM Storage certification exams. One should practice our complete set of questions and answers continuously for 2-3 months for through understanding of SAN Fundamentals and various exams and interviews.
1. Which of the following suffers from write hole problem?
a) RAID 0
b) RAID 1
c) RAID 5
d) RAIDZ
View Answer
Explanation: None.
2. If read and write performance is the only criterion, which would you choose?
a) RAID 0
b) RAID 1
c) RAID 5
d) RAID 50
View Answer
Explanation: None.
3. Which one of the following is an invalid RAID level?
a) Raid 10
b) Raid 50
c) Raid 53
d) Raid 80
View Answer
Explanation: None.
4. Which of the following RAID levels guarantees double disk failure protection?
a) Raid 5
b) Raid 6
c) Raid 0+1
d) Raid 0+5
View Answer
Explanation: None.
5. Which of the following RAID levels are nested?
a) Raid 5
b) Raid 6
c) Raid 10
d) Raid 4
View Answer
Explanation: None.
6. What is the name of raid module in a linux kernel?
a) lvm
b) raidsoft
c) md
d) none of the mentioned
View Answer
Explanation: None.
7. What is the minimum number of disks needed for Raid level 5?
a) 2
b) 3
c) 4
d) 5
View Answer
Explanation: None.
8. When one disk fails in a RAID 5 array with a hot spare, which one of the following statements is true?
a) No IO can continue
b) Reads continue from hot spare, but writes fail
c) Both reads and writes can continue
d) Array must be shut down immediately for replacing the failed disk
View Answer
Explanation: None.
9. When one disk fails in a RAID 5 array without a hot spare, which one of the following statements is true:
a) No IO can continue
b) Reads continue from hot spare, but writes fail
c) Both reads and writes can continue
d) Array must be shut down immediately for replacing the failed disk
View Answer
Explanation: None.
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