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Why can we recover a file that has been deleted?
The delete command doesn't touch the file itself. The entry in the Directory Entry Table is left intact with only the first letter of the file name changed to a "?" This question mark in the first letter tells DOS that "This Space is Available for a New File."
What are the 3 options used to undelete files?
Standard undelete, Deletion Tracking, and Delete Sentry.
What two undelete options require undelete to already be running in memory.
Deletion Tracking and Delete Sentry
Deletion Tracking loads undelete into memory and create a hidden file called _____________.
What form of undelete creates a hidden directory, often though of as the original recycling bin?
Which level of undelete will only recover a deleted file as long as MS-DOS has not placed another file in any portion of the deleted file's location?
This level of undelete uses a hidden file to hold disk-storage information about the files you delete.
With Sentry, undelete truly removes the files from your hard disk when?
7 day or when undelete needs more room in the sentry directory
Which undelete parameter recovers only those files protected by the Delete Sentry level, prompting for confirmation on each file.
which undelete parameter recovers only those files protected by the Delete Tracker level, prompting for confirmation on each file?
This parameter recovers only those files that are internally listed as being deleted by MS-DOS, prompting for confirmation on each file?
This parameter lists the deleted files that are available to be recovered but does not recover any files.
This parameter enables the delete sentry level of protection and loads the memory resident portion of the undelete program.
/S<drive> If <drive> is omitted it will protect files on the current drive
This parameter enables the delete tracker level of protection and loads the memory resident portion of the undelete program.
/T<drive> if <drive> is omitted it will protect files on the current drive.
When used for tracking deleted files, the Mirror command has this form:
note: <files> is the number of deleted files you want to track. You can specify from 1-999. If you omit this command delete tracker assumes a generous number based on the size of the disk.
What is the difference between a differential and incremental back up?
An incremental backup backs up every file you select that has changed since the last full or incremental backup while the differential only backs up every file you select that has changed since the last full back up saving only the most up-to-date version. Incremental uses more disks/space.
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