Multiplexing
UDP
SMTP (Simple Mail Transfer Protocol) - sends mail only POP (Post Office Protocol) - retrieves mail and manages mailboxes IMAP (Internet Message Access Protocol) - retrieves mail and manages mailboxes
**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.
TCP and UDP are transport layer protocols; the OSI layer is layer 4 (transport)
FTP uses TCP.Usage of Transport Layer protocol (tcp or udp) depends upon various applications.Such as FTP uses TCP, TFTP uses UDP.
Generally SMTP.
transport protocol control the transportation of data and choose the best way for transmit ion.
UDP is a layer 4 (transport) protocol.
transport protocol control the transportation of data and choose the best way for transmit ion.
It uses a connectionless protocol only for multiple simultaneous transmissions. It uses multiple ports. - UDP
Http - Hyper Text Transport Protocol
The name of the protocol is "HTTP". Short for HyperText Transport Protocol.
Hyper Text Transfer Protocol
The transport layer uses port numbers to identify source and destination application layer protocols. Each application layer protocol is associated with a specific port number, allowing the transport layer to direct incoming and outgoing data to the correct application. For instance, HTTP typically uses port 80, while HTTPS uses port 443. This mechanism enables multiple applications to communicate simultaneously over a network without interference.
Winsock provides simultaneous access to multiple transport protocols. Winsock is version-agnostic and supports multiple versions of a transport protocol, such as TCP/IPv4 and TCP/IPv6. Winsock defines a standard service provider interface (SPI) between Ws2.dll and the protocol stacks. In this way, a single Ws2.dll can simultaneously access multiple stacks from different vendors. Because a single Ws2.dll must work across all stacks, you do not need to supply your own implementation of Ws2.dll. A transport protocol must be properly installed on the system and registered with Winsock to be accessible to an application. Ws2.dll exports a set of functions that facilitate the registration process enabling you to create a new provider and remove an existing one. When registering, your installation script must supply one or more completed WSAPROTOCOL_INFO structures containing a complete set of information about the protocol. Any transport stack installed in this manner is referred to as a "Winsock service provider". For more information about how to install a transport stack, see Winsock Service Provider Interface (SPI).
I believe Skype uses UDP or User Datagram Protocol.
It is UDP the User Datagram Protocol.