One control against accidental software deletion is to save all old versions of a program. Of course, this control is prohibitively expensive in terms of cost of storage. Suggest a less costly control against accidental software deletion. Is your control effective against all possible causes of software deletion? If not, what threats does it not cover?
What will be an ideal response?
Save
incremental
copies—only
the
changes
since
the
last
change.
Equivalently,
save
a
"transaction
journal"
of
changes
since
last
full
backup.
Develop
a
configuration
management
approach
to
save
code
necessary
to
create
a
new
version
from
the
old.
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