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
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
3. Which one of the following is an invalid RAID level?
a) Raid 10
b) Raid 50
c) Raid 53
d) Raid 80
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