RAID Recovery Course - RAID Introduction Test

RAID criteria are usually placed in vertices of

RAID square
RAID pentagon
RAID triangle

Number in RAID charts is used to denote

Q parity blocks
P parity blocks
data blocks

In the list, mark block-based RAIDs

RAID5
RAID1
JBOD
RAID0

Which of these sets of criteria are commonly applied to RAID arrays?

speed, size, and fault-tolerance
member disk count, speed, and fault-tolerance
speed, size, and endurance

Check non-block RAIDs in the list

RAID5
Span
RAID0
Mirror

Is there a special single standard for RAID metadata?

yes
no

Is there a RAID meeting all the RAID criteria simultaneously?

no
yes

Should start offset be equal to block size?

no
yes

Check those which can be RAID parameters

disk order
block size
start offset
block pattern

Speed improvement is achieved due to the fact that:

each member disk in RAID is faster than a regular hard drive
data on a RAID is not fragmented
two data blocks on two disks can be read in one operation