A control log basic to a real-time application system is a(n):
A. audit log.
B. console log.
C. terminal log.
D. transaction log.
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Answer: D
Since this is a real-time system the answer is a transaction
log. If the system failed, significant costs would be
incurred to reenter transaction data if a transaction log
were not maintained. A transaction log also permits
operations personnel to determine which transactions have
been posted, and this helps to decrease recovery time when
system failures occur.
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