Which term enables an interface to dynamically associate the first MAC address that it connected to as an authorized address?

• A. CAM Table
• B. Sticky MAC
• C. Transmission Control
• D. Source Authenticity

Answer: (B)

Sticky MAC is a port-security feature that makes the first MAC address learned on a switch port become the authorized address for that port. When enabled, the switch “sticks” these learned MACs in the configuration, so they persist across reboots, allowing the port to consistently recognize that original device. If another device with a different MAC tries to use the port (within the configured maximum), a security violation can occur, blocking the unauthorized device. This concept differs from a normal CAM table, which simply maps MAC addresses to ports for forwarding and doesn’t inherently provide per-port authorization that persists.