A systems administrator wishes to improve security in a datacenter. The administrator wants to be alerted whenever a hard drive is removed from the server room. Which of the following security…

RFID tags embedded in or attached to hard drives communicate with readers installed at room exits or doorways, automatically generating an alert the moment a tagged drive is carried past the reader. This provides immediate, passive, and automated notification without requiring human monitoring or interaction.

Security cameras passively record video but cannot automatically identify when a specific hard drive has been removed - they require manual review and do not generate real-time automated alerts.

Server and cabinet locks physically deter unauthorized removal but produce no alert when a lock is bypassed or when an authorized user removes a drive.

A mantrap is an access control vestibule that regulates personnel entry and exit but has no capability to detect or track individual hardware assets moving through it.

Proximity readers authenticate personnel credentials for door access but cannot detect or track the presence of individual hardware devices such as hard drives.