Which of the following is true about the factors that should be considered when evaluating database business requirements and the associated risk assessments?
A. mission-critical systems provide administrators with a large time window for performing maintenance
B. databases that have a high change rate require more frequent backups
C. for best performance, backups should be done when the system is under peak load
D. a single large database is usually easier to maintain than several smaller databases
Answer: B
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