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Types of protocols for interaction on client-server architecture level.

Below is a list of most popular types of protocols for interaction on client-server architecture level.

  1. Hypertext Transfer Protocol (HTTP): The foundation of the web, HTTP defines how clients (web browsers) request and receive resources (web pages, images, etc.) from servers. It’s a request-response protocol where clients send GET or POST requests and servers respond with data and status codes.
  2. File Transfer Protocol (FTP): This protocol allows for the transfer of files between clients and servers. It offers functionalities like uploading, downloading, directory listing, and file management.
  3. SSH File Transfer Protocol (SFTP): SFTP (SSH File Transfer Protocol) is a secure file transfer protocol. It runs over the SSH protocol. It supports the full security and authentication functionality of SSH.
  4. Simple Mail Transfer Protocol (SMTP): Used for sending emails, SMTP defines how email clients connect to email servers and transmit emails. It focuses on message delivery without concern for content or user interface.
  5. Post Office Protocol (POP3) and Internet Message Access Protocol (IMAP): These protocols are used for retrieving emails from a server. POP3 downloads emails to the client, while IMAP allows users to access and manage emails on the server itself.
  6. Domain Name System (DNS): This protocol doesn’t directly interact between clients and servers, but it’s crucial for client-server communication. DNS translates human-readable domain names (like [invalid URL removed]) into numerical IP addresses that computers can understand.
  7. Remote Procedure Call (RPC): This protocol allows a client to execute a procedure on a server as if it were running locally. It provides a transparent way for clients to access functionalities offered by servers. In advance exists gRPC protocol (gRPC Remote Procedure Calls) is a cross-platform high-performance remote procedure call (RPC) framework. gRPC was initially created by Google, but is open source and is used in many organizations.
  8. Secure Sockets Layer (SSL)/Transport Layer Security (TLS): These protocols secure communication between clients and servers by encrypting data transmission. They are essential for protecting sensitive information like passwords and credit card data.
  9. Message Queueing Protocols: Protocols like AMQP and RabbitMQ enable asynchronous communication between clients and servers. Messages are placed in a queue and processed by the server at its own pace, decoupling clients from server availability.

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