Which layer provides end-to-end communication? a. Data Link b. Network c. Transport d. Application

The correct answer is c. Transport layer. The transport layer is responsible for providing end-to-end communication between processes or applications running on different hosts in a network. It ensures that data is delivered reliably and efficiently, and provides services such as flow control, error recovery, and congestion control. Examples of transport layer protocols include TCP (Transmission Control Protocol) and UDP (User Datagram Protocol).