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What are two bridging concepts that are used to maintain an Ethernet switching table? (Choose two.)
Correct Answer: A,C
In Ethernet switching, learning and aging are two fundamental concepts for maintaining a dynamic Ethernet switching table (also known as a MAC address table). Learning is the process by which switches listen for frames and learn the MAC addresses by associating them with the incoming port. Aging is the mechanism that ensures the switch updates its table by removing MAC addresses that have not been seen for a certain amount of time (aging time). References: Juniper documentation on Ethernet switching: Understanding Ethernet Switching on Junos OS Devices
