About Lesson
A protocol is a set of rules or standards used to govern communication between devices in a network. Protocols ensure that devices on a network can exchange data in a structured and predictable manner. Some commonly used protocols include:
- Transmission Control Protocol (TCP)
- Function: TCP ensures reliable and ordered delivery of data across a network. It breaks data into packets and ensures that packets are reassembled correctly at the receiving end.
- Use: Used in applications that require reliable transmission, such as web browsing (HTTP), email (SMTP), and file transfers (FTP).
- Internet Protocol (IP)
- Function: IP is responsible for addressing and routing packets of data to their destination across different networks. Each device on a network is assigned a unique IP address.
- Use: Used for routing data across the internet and local networks.
- Hypertext Transfer Protocol (HTTP)
- Function: HTTP is used for transferring web pages and other content over the World Wide Web (WWW). It defines how requests and responses between a client (like a web browser) and a server should be formatted.
- Use: Browsing websites and retrieving web content.
- File Transfer Protocol (FTP)
- Function: FTP is used for transferring files between a client and a server on a network. It supports both upload and download of files.
- Use: File sharing between computers or uploading files to a server.
- Simple Mail Transfer Protocol (SMTP)
- Function: SMTP is used for sending and routing emails between email servers.
- Use: Sending email from a client to a mail server or between mail servers.