Which of the following statements are true regarding In-Memory computing security? There are 2 correct answers to this question.

Which of the following statements are true regarding In-Memory computing security? There are 2 correct answers to this question.
A . Data and undo log information (part of data) are automatically saved to disk at regular savepoints
B . The log is also saved to disk continuously and synchronously after each COMMIT of a database transaction
C . The redo log captures last 5 minutes changes by database transactions
D . After a power failure the system returns to its last consistent state by replaying the undo log since the last savepoint

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Answer: A,B