Future Business Leaders of America (FBLA) Cybersecurity Practice Test

What does IEEE 802.1X provide in network access?

1. Encryption of data packets

2. Mechanical access control

3. Port-based network access control

4. Dynamic IP address allocation

The correct answer is: Port-based network access control

IEEE 802.1X is a standard that specifically provides port-based network access control. This means that it facilitates authentication prior to granting network access to devices connected to a port on a network switch or wireless access point. The standard allows for the use of various authentication methods, such as EAP (Extensible Authentication Protocol), which ensures that only authorized users are allowed to connect to the network. By implementing IEEE 802.1X, organizations can significantly enhance their security posture. When a device attempts to connect to the network, the switch or access point will first challenge the device to present valid credentials. Once authenticated, the device gains access to the network resources. This method helps prevent unauthorized access and enhances the overall security of the network. Other options such as encryption of data packets pertain to securing the data being transmitted but are not a function of 802.1X itself. Mechanical access control refers to physical barriers to entry, and dynamic IP address allocation deals with assigning IP addresses rather than controlling access to the network. Thus, the focus of IEEE 802.1X is specifically on providing robust, port-based network access control.