Checkpointing a job
2008
Checkpointing a job
- A.
allows it to be completed successfully
- B.
allows it to continue executing later
- C.
prepares it for finishing
- D.
occurs only when there is an error in it
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Correct answer: B
Checkpointing a job saves its current state to storage. This enables the system to resume execution from that saved point if a failure occurs, rather than restarting from the beginning. It is a proactive fault-tolerance mechanism and does not guarantee completion or only occur upon errors.
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