Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 647

How do the MAC address table and TCAM differ?

Answer options

• A. TCAM is populated from the ARP file, and the MAC address table is populated from the switch configuration file
• B. TCAM stores Layer 2 forwarding information, and the MAC address table stores QoS information
• C. TCAM lookups can match only 1s and 0s, and MAC address lookups can match 1s, 0s and a third "care/don't care" state
• D. TCAM is a type of memory and the MAC address table is a logical structure

Correct answer: D

Explanation

The correct answer is D because TCAM (Ternary Content Addressable Memory) is indeed a type of memory used for high-speed lookups, while the MAC address table is a logical structure that stores MAC addresses and their associated ports. Options A, B, and C provide incorrect descriptions of how these components function, mixing up their roles and functionalities.