What does PPP stand for in Wide Area Network (WAN) communication?
Point-to-Point Protocol
PPP stands for Point-to-Point Protocol. It is one of the most widely used Data Link Layer (Layer 2) protocols for carrying data over a direct serial link between exactly two nodes — hence the name "point-to-point."
PPP was designed to move multi-protocol datagrams over point-to-point links and provides a complete framework rather than just framing:
- Link Control Protocol (LCP): establishes, configures, tests, and terminates the link, negotiating options such as maximum frame size.
- Network Control Protocols (NCPs): allow PPP to carry many different network-layer protocols (for example IP via IPCP) over the same link.
- Authentication: supports PAP (Password Authentication Protocol) and the more secure challenge-based CHAP.
- Optional error detection, compression, and multilink bundling.
PPP is the backbone of many WAN access technologies — dial-up modems, DSL (as PPPoE/PPPoA), and serial leased lines. It effectively replaced the older SLIP (Serial Line Internet Protocol), which lacked authentication, error detection, and multi-protocol support.
The distractors are simply invented expansions with no standing in networking. "Private Port Protocol," "Public Packet Protocol," and "Packet Transfer Protocol" are not real protocols, and none matches the established acronym for a Layer-2 WAN link protocol.
Similar Questions
Which of the following best describes packet switching in computer network?
Which type of network typically experiences the lowest transmission delay?
Important Questions from Computer Networks
Match List I with List II
LIST I
(Layers of OSI Model)
LIST II
(Function)
A.
Physical layer
I.
Responsible for the delivery of a message from one process to another
B.
Transport layer
II.
Responsible for dialog control and synchronization
C.
Session layer
III.
Responsible for the movement of individual bits from one node to the next
D.
Application layer
IV.
Responsible for providing services to the user
Choose the correct answer from the options given below:
The ______ layer is the lowest layer in the OSI Model
A network in which the host computer controls different nodes which further control other nodes, is known as:
Which is not the type of 'Switching Technique among the following?
Which is not the type of Network based on Area?
