Swipe Badges | Network+ Exam Answer

Which of the following can be used to prevent unauthorized employees from entering restricted areas?

A.

Sign-in sheets

B.

Video cameras

C.

Motion sensors

D.

Swipe badges.

D.

Option D: Swipe badges can be used to prevent unauthorized employees from entering restricted areas.

Explanation:

Swipe badges or access control cards are electronic devices that can be used to restrict access to certain areas. They are commonly used in office buildings, data centers, and other facilities that require strict security measures.

The badges are issued to authorized employees and can be programmed to allow access to specific areas at specific times. The badges usually have a magnetic stripe or an RFID chip that can be read by a card reader at the entrance to a restricted area.

When an authorized employee swipes their badge, the reader checks the information on the badge against a database of authorized employees. If the employee is authorized to enter the area, the door or gate will unlock, and the employee will be allowed to enter. If the employee is not authorized, the door will remain locked, and an alert may be sent to security personnel.

Swipe badges are an effective way to prevent unauthorized access to restricted areas because they are difficult to duplicate or counterfeit. They also provide a record of who entered the area and when, which can be useful for security and auditing purposes.

In contrast, sign-in sheets can be easily forged, video cameras and motion sensors can only detect unauthorized access after the fact, and can also generate false alarms or misses. Therefore, swipe badges are a preferred option for access control in restricted areas.