RAID Recovery Course - RAID Introduction Test

What type of the device can implement exotic RAIDs?

high-end hardware
low-end hardware
software

Which of the following is the JBOD parameter set?

block size, disk order
start offset, block size
start offset, disk order

Is it obligatory to use identical disks to create a RAID?

no
yes

RAID is short for

Reliable Array of Independent Disks
Reliable Array of Inexpensive Disks
Redundant Array of Independent Disks
Redundant Array of Inexpensive Disks

What typical values for block size in RAID?

up to 1 MB
up to 1 KB
4096 MB

Speed improvement is achieved due to the fact that:

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

Check non-block RAIDs in the list

RAID0
Span
Mirror
RAID5

Where is RAID metadata stored?

at the beginning of the member disk
anywhere, depending on the implementation specifics
at the end of the member disk

What is start offset?

offset at which RAID metadata starts
offset at which RAID user data starts

Is there a RAID meeting all the RAID criteria simultaneously?

yes
no