Question

An application uses Transmission Control Protocol (TCP) as it requires data to make it to the destination 100% intact. Which of the following are functions of this protocol? (Select all that apply.)

a) Error checking
b) Sequencing
c) Flow control
d) Addressing

Answer 1

The Transmission Control Protocol (TCP) is designed for reliable data transmission and incorporates error checking, sequencing, and flow control. Addressing is managed by the Internet Protocol (IP), not by TCP directly.

Step-by-step explanation:

The Transmission Control Protocol (TCP) is central to ensuring reliable data transmission across a network. It performs this by incorporating several key functionalities:

• Error checking - TCP includes error detection mechanisms to ensure that data is transmitted correctly. The receiving end performs an integrity check based on the TCP segment's checksum to confirm the data's consistency.
• Sequencing - As data packets can arrive out of order, TCP numbers them so that they can be reassembled in sequential order at the destination.
• Flow control - TCP manages the data transmission rate between sender and receiver to prevent network congestion and ensure efficient data transfer.

Addressing, on the other hand, is not directly handled by TCP; it is managed by the Internet Protocol (IP), working in conjunction with TCP in the Internet protocol suite (TCP/IP).