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Single Answer
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What does port security use to determine what machines or devices can connect to a network port?

Answer Options

A

A list of userIDs

B

A multifactor token code for each user

C

A list of MAC addresses

D

A list of IP addresses

Correct Answer: C

Explanation

Port security associates a list of allowed hardware (MAC) addresses with a port and only allows systems with permitted MAC addresses to connect to and send traffic through the network port. 802.1X uses authentication, which can include userIDs and multifactor. IP addresses are not a way that port security filters systems.