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RAID Recovery Course - RAID Introduction Test
Can block size be 1 sector?
yes
no
Which of the following is the JBOD parameter set?
start offset, disk order
start offset, block size
block size, disk order
Is it obligatory to use identical disks to create a RAID?
yes
no
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
How data is distributed to disks in a JBOD
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
in contiguous streams
Speed improvement is achieved due to the fact that:
data on a RAID is not fragmented
each member disk in RAID is faster than a regular hard drive
two data blocks on two disks can be read in one operation
What is a minimum number of disks required to create a RAID?
2 disks
3 disks
1 disk
How data is distributed to disks in a RAID5
data is divided into blocks of the same size and then blocks are written to the disks
in contiguous streams
data is divided into blocks of different size and then blocks are written to the disks
In the list, mark block-based RAIDs
JBOD
RAID5
RAID1
RAID0
Next lesson - RAID levels