Based on the error corretion algorithm discussed in ch6, Assume data are processed in 2048 bits, in order to perform SEC-DED (single error correction and double error detection), what is the best length of the check bits?
Question 5 options:
|
A |
13 |
|
B |
14 |
|
C |
11 |
|
D |
12 |
Question 6 (3 points)
Consider a magnetic disk drive with 8 double sided platters, 2000 tracks per disk surface. Each track has a capacity 2048 KBytes. Sector size is 2KBytes. Each disk surface contains how many sectors?
Question 6 options:
|
A |
7200/2 |
|
B |
2000* 2048/2 |
|
C |
2048/2 |
|
D |
2000* 7200/2 |
Question 7 (3 points)
Considering a RAID system with only 38 hard drive disks in total, which of the following RAID architecture will provide the least storage capacity for user data
Question 7 options:
|
A |
RAID 3 |
|
B |
RAID 6 |
|
C |
RAID 1 |
|
D |
RAID 2 |
the correct option is D that is 12 bits is best for the check bit.
Ques 6
2000 tracks per surface and each track has capcity of 2048 kb and sector size is 2kb so number of sector in track is 2048/2 and number if sectors in whole surface will be 7000*(2048/2) , that is option B
Ques 7.
Correct option is C because it keep the copy of the data as well so the whole effective storage is divided into half to incorporate the storage of copy of data.
Based on the error corretion algorithm discussed in ch6, Assume data are processed in 2048 bits,...
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