WEEK 5 CS2005 Transport Layer Concepts in Networks

Flashcards covering key concepts, vocabulary, and definitions related to the transport layer in networking.

Transport Layer

The transport layer provides logical communication between application processes running on different hosts.

Multiplexing

The process of gathering data chunks from different sockets, encapsulating each with header information to create segments.

Demultiplexing

The process of delivering received segments to the correct socket at the receiving host.

User Datagram Protocol (UDP)

A transport layer protocol that provides unreliable, unordered delivery of data.

Transmission Control Protocol (TCP)

A transport layer protocol that ensures reliable, in-order delivery of data.

4-tuple

In TCP, the unique identifier for a connection consisting of source IP address, source port number, destination IP address, and destination port number.

2-tuple

In UDP, the unique identifier for a socket consisting of a destination IP address and a destination port number.

Checksum

A value computed to check for errors in the segment, ensuring data integrity during transmission.

Connection-oriented

A type of protocol, such as TCP, which establishes a connection before transmitting data.

Connectionless

A type of protocol, such as UDP, which does not establish a connection before transmitting data.

Process-Level Addressing

Method used to differentiate between processes (applications) at the transport layer.

Integrity Check

A process used to detect errors in data transmission.

Flow Control

A technique used in TCP to manage the rate of data transmission between sender and receiver.

Port Number

A number used to identify a specific process on a host for communication.

Socket

An endpoint for sending or receiving data across a computer network.