Explanation:
The correct CRON expression for scheduling the job to run every day at 3 AM is '0 3 * * '. This expression consists of five fields: minutes, hours, day of the month, month, and day of the week. In this case, '0' specifies the minute, '3' specifies the hour, and the asterisks () indicate any value for the day of the month, month, and day of the week, respectively.
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Consider a data processing job that needs to be scheduled to run every day at 3 AM. How would you use CRON to set up this scheduling opportunity? Provide the CRON expression and explain its components.
A
0 3 * * * - This expression schedules the job to run at 3 AM every day.
B
3 * * * * - This expression schedules the job to run at 3 minutes past every hour.
C
D
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