CompTIA A+ 220-1102 Practice Question

It grants access to authorized personnel by verifying credentials on a physical card - This is correct. The primary function of a badge reader is to authenticate a user's credentials stored on a physical card or badge, such as RFID or magnetic stripe cards. If the credentials are valid, access is granted to the secured area.

It tracks employee attendance in real-time throughout the building - While badge readers can be part of attendance tracking systems, this is not their primary function. Their main role is access control.

It records video footage of individuals entering and exiting - Badge readers do not record video footage. This function is typically handled by surveillance cameras, which may work in conjunction with a badge reader but are separate components of a security system.

It activates alarm systems when unauthorized attempts are made to enter - Badge readers themselves do not activate alarms. However, they may send signals to an alarm system if unauthorized access is attempted, depending on the configuration of the overall security system.