Question

Which encapsulation can be configured on a serial interface?

Answer 1

The encapsulation that can be configured on a serial interface are HDLC, Frame Reby and PPP.

HDLC stands for High-Level Data Link Control protocol, which is used to connect point to point serial devices.

Point to Point Protocol (PPP) is used for every dial up connection to the Internet.

Frame Relay is a Layer 2 protocol commonly known as a service from carriers.