RAID Recovery Course - RAID Introduction Test

Check the reasonably acceptable RAID block sizes

512 bytes
4094 bytes
128 KB
2048 bytes

Should start offset be equal to block size?

no
yes

How data is distributed to disks in a JBOD

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

RAID is short for

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

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:

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?

no
yes

What is start offset?

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

More complex RAIDs have more parameters

true
false