問題文
The nightly batch job for the store runs every four hours and takes about one hour. What threshold does the project's guidance suggest for alerting that the job has not succeeded recently enough, and why?
選択肢
- The duration of one single run, so about one hour, because a job that has not finished within its own usual runtime is by definition stuck somewhere.
- Long enough for at least two full runs, so around ten hours, because a single failed run should not require human intervention.
- Twenty-four hours, because batch jobs are inherently non-urgent work and should never become a source of pages at all.
- Exactly the run interval of four hours, so that a single missed run is caught as early as possible.