What should you do to ensure that server tasks associated with a particular schedule run...

In Tableau Server, schedules manage tasks such as extract refreshes and subscriptions. The execution mode of a schedule determines how tasks within that schedule are processed by the Backgrounder process:

Parallel: Tasks run simultaneously (up to the Backgrounder’s capacity), which is the default setting.

Serial: Tasks run one-at-a-time in sequence, ensuring that one task completes before the next begins.

To ensure tasks associated with a particular schedule run one-at-a-time, you must configure the schedule’s execution mode to Serial. This is done in the Tableau Server web interface:

Go to Schedules.

Select the schedule, click Actions > Edit Schedule.

Under Execution, choose Serial instead of Parallel.

Option A (Set Execution to Serial): Correct. This directly addresses the requirement by forcing tasks to execute sequentially.

Option B (Set Default priority to 0): Incorrect. Priority (1–100) determines the order of task execution across all schedules, not whether tasks run one-at-a-time within a single schedule. Also, 0 is not a valid priority value (minimum is 1).

Option C (Set Frequency to Hourly): Incorrect. Frequency (e.g., hourly, daily) controls when the schedule runs, not how tasks within it are executed.

Option D (Set Execution to Parallel): Incorrect. Parallel execution allows tasks to run simultaneously, which contradicts the requirement.