RAID Recovery Course - RAID Introduction Test

Check the reasonably acceptable RAID block sizes

4094 bytes
2048 bytes
128 KB
512 bytes

How data is distributed to disks in a RAID5

data is divided into blocks of different size and then blocks are written to the disks
in contiguous streams
data is divided into blocks of the same size and then blocks are written to the disks

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

no
yes

RAID is short for

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

What type of the device can implement exotic RAIDs?

low-end hardware
high-end hardware
software

What is a minimum number of disks required to create a RAID?

3 disks
1 disk
2 disks

Speed improvement is achieved due to the fact that:

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

Can block size be 1 sector?

yes
no

What is start offset?

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

More complex RAIDs have more parameters

false
true