The system periodically performs checkpoints that consists of the following operation(s) :
A. Putting all the log records currently in main memory onto stable storage
B. putting all modified data residing in main memory onto stable storage
C. putting a log record onto stable storage
D. All of these
Answer:A
The system periodically performs checkpoints that consists of the following operation(s) :
A. Putting all the log records currently in main memory onto stable storage B. putting all modified data residing in main memory onto stable storage C. putting a log record onto stable storage D. All of these
Explanation: None.