Port security is a layer 2 traffic control feature used mainly to limit the number of MAC addresses allowed on a single port. This prevents unauthorized devices from accessing the network and mitigates risks like MAC flooding. Limiting bandwidth does not relate directly to security, and monitoring traffic patterns and transmitting data securely are functions more closely associated with network monitors and encryption protocols, respectively.
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How does port security prevent unauthorized devices from accessing the network?
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What is a MAC flooding attack, and how does port security mitigate it?
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What are the different actions a switch can take when a port security violation is detected?