RAID Recovery Course - RAID Introduction Test

Check the reasonably acceptable RAID block sizes

4094 bytes
128 KB
2048 bytes
512 bytes

How data is distributed to disks in a RAID1

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

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

no
yes

RAID criteria are usually placed in vertices of

RAID pentagon
RAID square
RAID triangle

What type of the device can implement exotic RAIDs?

software
high-end hardware
low-end hardware

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

2 disks
1 disk
3 disks

Speed improvement is achieved due to the fact that:

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

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