Which technology is commonly used in security operations?

The choice highlighting CCTV, alarm systems, and access control barriers is essential in security operations because these technologies provide critical functions that enhance safety and monitoring.

CCTV (Closed-Circuit Television) cameras allow security personnel to constantly monitor different areas and provide visual evidence when incidents occur. This real-time surveillance plays a vital role in deterring potential criminal activities and ensuring immediate response to threats.

Alarm systems serve as effective deterrents as well, providing alerts in case of unauthorized access or emergencies. They can notify security personnel and law enforcement, ensuring a quick response that can minimize damage or prevent crimes.

Access control barriers, such as gates and electronic locks, are integral to regulating who can enter or exit secure areas. They restrict access to authorized personnel only, thus enhancing the overall security of a facility and protecting its assets.

In contrast, the other options lack direct relevance to security operations. Televisions and personal computers may be used as part of an overall security system for display or monitoring purposes but do not actively contribute to security. Social media platforms are more geared towards communication and engagement rather than physical security measures. Portable music players have no relation to security functionalities. Each of these technologies does not address the core needs for security, which are surveillance, alerting, and controlled