1. Mintoo Jakhmola
R.No.:A19

2. The process of backing up
refers to making copies of data
so that these additional copies
may be used to restore the
original after a data loss event.

3. One of the more common problems nowadays is
the threat from viruses, with some of the more
serious infecting the master boot record of a hard
drive's file system. If the master boot record of a
hard drive is infected with a virus, then the Fdisk
utility, or similar, would most likely have to be run,
the hances are the data on the drive would be lost,
or at least costly to recover.

4.  Floppy Disks
 USB Drives
 CD/DVD Writers
 External Hard Drives

5. Retrieving files is related to
recovery of deleted or lost
files or data by searching.

6. File or data recovery is generally used
when there has been some damage to
the storage sector. They are also used
for retrieval of secure data from disks
after they are deleted.

7. Data recovery is generally used when there
has been some damage to the storage sector
physically or any logical error in the
disk partitions of the storage drives. They
are also used for retrieval of secure data
from disks after they are deleted.

8. 1. Data recovery after physical damage
Physical damage to a storage device may be like the
failure of the reading head in a hard drive or due to
the removal of the metallic layer in a compact disk
etc. In such conditions, the easiest way to
compensate the damage is to replace the damaged
parts with new ones. But that does not clear the
consequential logical damage to the media due to
the physical damage.

9. 2. Data recovery after logical damage
Logical damage to the file system in a computer
occurs more often than physical damage to the
storage media. It usually occurs due to the
unexpected power failures which results in the
unsaved status in the file system or incomplete
rollback to the previous state of the file system.