ReclaiMe Data Recovery Training

RAID Recovery Course - RAID Introduction Test

Is there a special single standard for RAID metadata?

yes
no

Which of the following is the JBOD parameter set?

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

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

RAID is short for

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

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

In the list, mark block-based RAIDs

RAID1
RAID0
RAID5
JBOD

What is start offset?

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

Which of these sets of criteria are commonly applied to RAID arrays?

member disk count, speed, and fault-tolerance
speed, size, and endurance
speed, size, and fault-tolerance

Next lesson - RAID levels

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