A) Concurrency controls and Referential integrity controls
B) Concurrency controls
C) Reasonableness checks
D) Time stamps
E) Referential integrity controls
Correct Answer: D
Solution :
[d] Time stamps are an effective control for detecting duplicate transactions such as payments made or receive Timestamp-based concurrency control algorithm is a non-lock concurrency control method. It is used in some databases to safely handle transactions, using timestamps.
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