CompTIA PenTest+ Practice Test

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What does the fifth field in a Linux cron job represent?

Day of the week
Hour
Month
Day of month

The correct answer is: Day of the week

The fifth field in a Linux cron job represents the day of the week. This position in the cron syntax specifies which day of the week on which the scheduled command should execute, typically using values ranging from 0 to 6, where 0 is Sunday and 6 is Saturday. By specifying a particular day of the week, users can finely control when scripts or commands run. It's important to understand the structure of a cron job, which consists of six fields: minute, hour, day of the month, month, day of the week, and the command to execute. Knowing the function of each field allows for accurate scheduling of jobs. Each field can be used to indicate specific times or ranges, thereby enhancing automation and operational efficiency in a Linux environment.