At checkpoint time:
A) Log buffers are force written
B) Undo operations take place
C) Redo operations take place
D) Disk backup takes place

Question

Quizplus · Accepted Answer

At checkpoint time, log buffers are force written to disk to ensure that all logged changes are stored permanently. This process helps in reducing the amount of work needed for recovery in case of a system failure. Undo and redo operations are related to transaction management and recovery, not directly to the checkpoint process. Disk backup is a separate process from checkpointing and involves creating a copy of the database data, not just flushing log buffers.

At Checkpoint Time