CompTIA CySA+ Practice Test

Why might an organization choose to implement MAC filtering in their security strategy?

1. To expand the network coverage area

2. To allow only specific devices to connect to the network

3. To facilitate remote access for all users

4. To speed up network performance

The correct answer is: To allow only specific devices to connect to the network

An organization might choose to implement MAC filtering as a part of its security strategy primarily to allow only specific devices to connect to the network. MAC filtering works by allowing access to only those devices whose Media Access Control (MAC) addresses have been explicitly permitted on the network. This helps prevent unauthorized devices from gaining access, strengthening the security of the network by ensuring that only known and trusted devices can communicate with it. By limiting network access in this way, organizations can reduce the risk of potential threats from unknown devices and improve overall network security. It serves as a layer of defense against attacks such as unauthorized access attempts, making it harder for intruders to breach the network. Other choices focus on functionalities not related to the core purpose of MAC filtering, such as expanding network coverage or facilitating remote access, which do not align with the intended purpose of this security measure.