What is a Protocol?

Protocol is a standard that controls or enables connection, communication and the data are transferred between the computing points. In other words the syntax can be defined as the rule that checks out the syntax, semantics and the communication synchronization. Protocols can be hardware, software or may be both. The behavior of the connection of the hardware is
characterized by the protocol.

Properties of a protocol:

The protocol has different properties that help in the connection, communication and also for the transfer of data between two devices. Some of the properties of the protocol are mentioned below.

• Detection of the underlying physical connection (wired or wireless), or the existence of the other endpoint or node
• Handshaking
• Negotiation of various connection characteristics
• How to start and end a message
• How to format a message
• What to do with corrupted or improperly formatted messages.
• How to detect unexpected loss of the connection, and what to do next
• Termination of the session and connection.

Common protocols:

The below mentioned are some of the protocols that are used in
various fields for many applications.

• IP (Internet Protocol)
• UDP (User Datagram Protocol)
• TCP (Transmission Control Protocol)
• DHCP (Dynamic Host Configuration Protocol)
• HTTP (Hypertext Transfer Protocol)
• FTP (File Transfer Protocol)
• Telnet (Telnet Remote Protocol)
• SSH (Secure Shell Remote Protocol)
• POP3 (Post Office Protocol 3)
• SMTP (Simple Mail Transfer Protocol)
• IMAP (Internet Message Access Protocol)

These are some of the protocols that are used in various fields for different applications. These are some of the information that are discussed regarding the protocol.