TCP operates at transport layer
TCP and UDP are transport layer protocols; the OSI layer is layer 4 (transport)
I've always considered it to operate at the transport layer as it;s simply an encrypted version of TCP. However, Wikipedia OSI-model lists it as operating at the presentation layer, as it's concerned with the transformation of data between the application and transport layers.
There is a good descrition of the network layer and TCP in the related link. NO. In general TCP and UDP are transport protocols that operates in Layer 4 Transport Layer
Transport layer TCP/IP Protocols are TCP and UDP
transport
Transport layer
transport
Answer B UDP (UDP is preferred over TCP foe real time applications such as videoconferences. UDP and TCP operate at the transport layer). Page 554
The Transport layer
**The TCP transport layer protocol uses windowing and acknowledgments for reliable transfer of data. **The TCP and UDP port numbers are used by application layer protocols. **The TCP transport layer protocol provides services to direct the data packets to their destination hosts.
The Transport Layer
The PDU (protocol data unit) @ transport layer (e.g. TCP or UDP) is called as 'segment' .