Which of the following is a common duty of security personnel?

Monitoring premises to prevent theft or vandalism is a fundamental duty of security personnel. This role involves conducting regular patrols, observing activities, and identifying potential threats to ensure the safety and security of the property and its occupants. By being vigilant and proactive, security personnel can deter criminal activities and respond promptly to any incidents. This task is essential in maintaining a safe environment, protecting assets, and promoting overall security.

The other roles mentioned, such as managing employee performance reviews, providing financial advice, and training new employees, are typically outside the scope of responsibilities for security personnel. These tasks usually fall within human resources, financial advisory roles, or management training, which do not align with the primary focus of security duties.