COMPUTER NETWORKING

Detailed explanation-1: -Point-to-Point Protocol (PPP) is a communication protocol of the data link layer that is used to transmit multiprotocol data between two directly connected (point-to-point) computers. It is a byte-oriented protocol that is widely used in broadband communications having heavy loads and high speeds.

Detailed explanation-2: -Point-to-Point Protocol over Ethernet (PPPoE) is a network protocol that facilitates communication between network endpoints. PPPoE encapsulates Point-to-Point Protocol (PPP) frames inside Ethernet frames, offering the same benefits as PPP, while providing connectivity across Ethernet networks.

Detailed explanation-3: -The foremost data link layer protocol is the Ethernet protocol. Like the check being placed into the envelope, the Ethernet protocol encapsulates data passed to it from higher layers. It also does the reverse: it decapsulates data that is presented to it from the physical layer.