which of the following is an important consideration in

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In addition to the backup considerations for all systems, which of the following is an important
consideration in providing backup for online systems?

A.
Maintaining system software parameters

B.
Ensuring periodic dumps of transaction logs

C.
Ensuring grandfather-father-son file backups

D.
Maintaining important data at an offsite location

Explanation:
Ensuring periodic dumps of transaction logs is the only safe way of preserving timely historical datA.
The volume of activity usually associated with an online system makes other more traditional
methods of backup impractical.

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