Final answer:
TCP operates at the Transport layer of the TCP/IP model, which is responsible for providing reliable, ordered, and error-checked delivery of data between applications on a network.
Step-by-step explanation:
The Transmission Control Protocol (TCP) operates at the Transport layer of the TCP/IP model. This layer is responsible for providing reliable, ordered, and error-checked delivery of data between applications running on hosts on a TCP/IP network. Essentially, TCP works to ensure that data sent from one end is received by the intended recipient in the right order and without errors, making it a cornerstone for internet communications.
To understand how TCP functions within the TCP/IP model, it's important to recognize the four distinct layers that make up the model:
- Application layer
- Transport layer
- Internetwork layer
- Network Access layer
Out of the options provided (a) Transport, (b) Application, (c) Internetwork, and (d) Network Access, the correct answer is (a) Transport.