Final answer:
TCP, UDP, and RTP are protocols used in the Transport Layer of the TCP/IP model, responsible for facilitating host-to-host communication services for applications.
Step-by-step explanation:
Transmission Control Protocol (TCP), User Datagram Protocol (UDP), and Real-time Transport Protocol (RTP) are all used in the Transport Layer of the TCP/IP model. This layer is responsible for providing host-to-host communication services for applications. It is also in charge of segmenting data and managing a two-way communication system through error recovery and flow control.
TCP provides reliable, ordered, and error-checked delivery of a stream of bytes between applications running on hosts communicating via an IP network. UDP is a simpler message-based connectionless protocol, which does not guarantee delivery, ordering, or duplicate protection. RTP is used primarily for delivering streaming media and real-time data over networks, working typically over UDP to take advantage of its low-latency characteristics.