Which of the following activities could reduce the security benefits of mandatory vacations?

Running the same applications is expected and appropriate; the replacement can still observe anomalous behavior or unexpected output while using standard tools.

Performing tasks in a different order may actually increase detection likelihood, as deviations from established sequences can surface hidden irregularities.

Using a different workstation does not undermine the detective effectiveness of mandatory vacation and may provide additional audit trail visibility for forensic review.

When a replacement employee executes scripts written by the vacationing employee without independently understanding them, any malicious logic, unauthorized transactions, or fraudulent automation embedded in those scripts continues to run undetected. The security value of mandatory vacation comes from having an independent party scrutinize the work, which is entirely negated if the replacement blindly executes the original employee's automation. This allows a malicious insider's activities to persist through the vacation period with no independent review.