In TCP, the sender and receiver establish a before data transmission.

One of the key features of FTP is its support for multiple authentication methods, including username and authentication.

Protocols are important because they establish a common for communication between different devices.

The importance of protocols is evident in their role in enabling between various technologies.

OSI and TCP/IP are examples of models.

TCP is a protocol.

In UDP, there is no mechanism for delivery of packets.

Networking ensure that different devices can communicate with each other.