CompTIA Security+ SY0-701 Practice Question

Installing biometric access controls on the data center doors is a preventive control that effectively stops unauthorized individuals from entering by requiring unique biological characteristics, such as fingerprints or retinal scans. This ensures that only authorized personnel can gain access, directly preventing unauthorized entry. Implementing CCTV (Closed-Circuit Television) cameras helps in monitoring and potentially deterring intruders but does not physically prevent access; it serves more as a deterrent and a detective control. Conducting regular security awareness training is important but focuses on educating employees rather than directly preventing unauthorized physical access. Reviewing access logs for suspicious activity is a detective control that identifies unauthorized access after it has occurred, not preventing it.