RAID Recovery Course - Parity Analysis Test

Given that P is a parity block calculated over A and B data blocks

A XOR B XOR P = 1
A XOR B XOR P = 0

Look at the picture on the right and guess the possible RAID level

RAID 5 with a blank disk
Full RAID5
RAID 5 with a missing disk

Look at the picture on the right and guess the possible RAID level

RAID 5 with a blank disk
Full RAID6
Full RAID 6 with a hotspare
RAID6 with a missing disk

A row of [A,B,P] blocks is even if

A XOR B XOR P = 0
A XOR B XOR P = 1

Which parity function is usually used in a RAID5?

XOR
Reed-Solomon
Huffman
Lempel, Ziv, Welch

Choose the property of XOR function due to which "blank disks litter the parity analysis"

A XOR A = 0
A XOR B = B XOR A
A XOR 0 = A

Choose the correct statement

A XOR B < B XOR A
A XOR B = B XOR A
A XOR B > B XOR A

Choose the correct statement

A XOR 0 = 1
A XOR 0 = 0
A XOR 0 = A

Choose the property of XOR function due to which "you do not need to know the parity location when reconstructing a missing disk"

A XOR 0 = A
A XOR A = 0
A XOR B = B XOR A

Look at the picture on the right and guess the possible RAID level

RAID 5 with a missing disk
Full RAID6
RAID 6 with a missing disk
Full RAID 5 with a hotspare