Question

Considering a RAID system uses 16 hard drive disk to store user data, which of the following RAID architecture requires the least number of additional disks for redundancy?

Question 1 options:

A	RAID 6
B	RAID 2
C	RAID 3
D	RAID 1

Question 2 (3 points)

Given the Hamming code diagram, which of the following statement is true?

Question 2 options:

A	M=1, N=1 and K= 1 shows a status of no bit error
B	M=0, N=0 and K= 0 shows a status of no bit error
C	M=0, N=1 and K= 0 shows a status of no bit error
D	M=0, N=1 and K= 1 shows a status of no bit error

Answer 1

Question 1:

Option (A) is the correct answer.

In the given scenario, RAID 6 architecture will require the least number of additional disks for redundancy.

RAID 6 or Redundant Array of Independent Disks 6 is a virtualization technique which is useful to combine multiple physical hard disk drives. It has block-level striping with double distributed parity. This means up to two drive failures can be handled. Due to this reason it is more effective for large number of drives. It requires a minimum of four drives. In the given scenario it needs the least number of additional disks for redundancy among the given option.

Please note RAID 10 should be more appropriate for the given scenario, but it is not included in the option.

Option (B) is incorrect as RAID 2 is obsolete now and is not used anymore for commercial purposes.

Option (C) is incorrect as RAID 3 is obsolete now and is not used anymore for commercial purposes.

Option (D) is incorrect as RAID 1 will provides a much lower throughput.

For the question 2, the Hamming code diagram is missing. Requesting you to kindly re-post the question so we can solve it.

Please comment in case of any doubt.
Please upvote if this helps.