At which layer of the OSI model does PPP perform?

At which layer of the OSI model does PPP perform?
A . Layer 2
B . Layer 3
C . Layer 4
D . Layer 5

View Answer

Answer: A

Explanation:

Point-to-Point Protocol (PPP) is a data link protocol commonly used in establishing a direct connection between two networking nodes. It can provide connection authentication, transmission encryption (using ECP, RFC 1968), and compression.