At which layer of the OSI model does PPP perform?
A.
Layer 2
B.
Layer 3
C.
Layer 4
D.
Layer 5
Explanation:
Point-to-Point Protocol (PPP) is adata linkprotocolcommonly used in establishing a direct connection
between twonetworking nodes. It can provide connectionauthentication,
transmissionencryption(usingECP,RFC 1968), andcompression.