Which statement about Cisco Express Forwarding is true?
A. it maintains two tables in the data plane the FIB and adjacency table.
B. The CPU of a router becomes directly involved with packet-switching decisions.
C. It uses a fast cache that is maintained in a router data plane.
D. It makes forwarding decisions by a process that is scheduled through the IOS scheduler.
Answer:A
Which statement about Cisco Express Forwarding is true?
A. it maintains two tables in the data plane the FIB and adjacency table. B. The CPU of a router becomes directly involved with packet-switching decisions. C. It uses a fast cache that is maintained in a router data plane. D. It makes forwarding decisions by a process that is scheduled through the IOS scheduler.
Explanation: Cisco Express Forwarding (CEF) provides the ability to switch packets through a device in a very quick and efficient way while also keeping the load on the router’s processor low. CEF is made up of two different main components: the Forwarding Information Base (FIB) and the Adjacency Table. These are automatically updated at the same time as the routing table.