Question 2
What is the differences between TCAM and the MAC address table?
Router prefix lookups happens in CAM. MAC address table lookups happen in TCAM
The MAC address table supports partial matches. TCAM requires an exact match
The MAC address table is contained in CAM. ACL and QoS information is stored in TCAM
TCAM is used to make Layer 2 forwarding decisions. CAM is used to build routing tables
Correct answer: C
Explanation:
When using Ternary Content Addressable Memory (TCAM) inside routers it’s used for faster address lookup that enables fast routing. In switches Content Addressable Memory (CAM) is used for building and lookup of mac address table that enables L2 forwarding decisions. Besides Longest-Prefix Matching, TCAM in today’s routers and multilayer Switch devices are used to store ACL, QoS and other things from upper-layer processing.
When using Ternary Content Addressable Memory (TCAM) inside routers it’s used for faster address lookup that enables fast routing.
In switches Content Addressable Memory (CAM) is used for building and lookup of mac address table that enables L2 forwarding decisions.
Besides Longest-Prefix Matching, TCAM in today’s routers and multilayer Switch devices are used to store ACL, QoS and other things from upper-layer processing.