On which TCP/IP layer do TCP and UDP reside?

On which TCP/IP layer do TCP and UDP reside?

• A. Network Access
• B. Internet
• C. Application
• D. Transport

Answer: (D)

TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) both operate at the Transport layer of the TCP/IP model. This layer is responsible for end-to-end communication and provides services such as error checking, data flow control, and sequencing of packets. TCP is a connection-oriented protocol, which means it establishes a connection before data can be sent, ensuring that all packets arrive in order and without errors. It is used for applications where reliable delivery is crucial, such as file transfers and web browsing. On the other hand, UDP is a connectionless protocol that sends packets without establishing a connection, allowing for faster transmission times. It is often used for streaming media, online gaming, or other applications where speed is more critical than reliability. By identifying the correct layer as the Transport layer, one can see how these protocols facilitate different types of communication required by various applications within the TCP/IP suite.

TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) both operate at the Transport layer of the TCP/IP model. This layer is responsible for end-to-end communication and provides services such as error checking, data flow control, and sequencing of packets.

TCP is a connection-oriented protocol, which means it establishes a connection before data can be sent, ensuring that all packets arrive in order and without errors. It is used for applications where reliable delivery is crucial, such as file transfers and web browsing. On the other hand, UDP is a connectionless protocol that sends packets without establishing a connection, allowing for faster transmission times. It is often used for streaming media, online gaming, or other applications where speed is more critical than reliability.

By identifying the correct layer as the Transport layer, one can see how these protocols facilitate different types of communication required by various applications within the TCP/IP suite.