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Communication Protocols You Should Know Communication protocols are the rules that let devices, apps, and services talk to each other. They define how data is formatted, how packets move, and how errors are handled. Understanding these rules helps you design better networks and debug issues faster. Two layers matter most in everyday use: the transport layer and the application layer. Core protocols you likely encounter include TCP/IP, which provides reliable delivery; HTTP and HTTPS for web traffic; DNS to turn names into addresses; and basic file transfers with FTP or SFTP. ...

Communication Protocols: From HTTP to MQTT Protocols set the rules for machines to talk. The web leans on HTTP, a general and flexible choice. In the Internet of Things, MQTT was built for small devices that send short messages over simple networks. Between HTTP and MQTT, other options exist, each built for a different need. Understanding these basics helps you pick the right tool for a project. HTTP: the workhorse of the web HTTP shines in human-facing and web-friendly tasks. It follows a request–response pattern, and servers stay stateless by design. Communication happens over TCP, which means reliable delivery and ordered data, especially when TLS is used for security. Headers and body carry metadata and data formats like JSON or HTML. The model is easy to cache and scale, which helps with web pages, APIs, and services that need broad adoption. ...

Communication Protocols: From HTTP to MQTT Protocols are the rules that let devices and apps talk. They decide how data is structured, how it travels, and how a receiver should respond. When you open a web page, you use HTTP or HTTPS. When a smart sensor sends updates, it might use MQTT. Each protocol fits a different situation, trade-off, and goal. HTTP is common for web pages and APIs. It uses a clear request-response pattern. A browser asks for a page, the server sends it back with headers and a body. This makes it easy to cache content, monitor traffic, and debug problems. With HTTPS, the same idea runs over a secure layer, protecting data in transit. ...

Communication Protocols: From HTTP to MQTT Communication protocols guide how data travels between devices, apps, and servers. HTTP powers the web with a clear request–response flow. MQTT, often used in IoT, favors small messages, low bandwidth, and fast delivery. Both move information, but they do so with different rules and trade-offs. This post explains the basics and helps you choose wisely. Understanding the basics HTTP is built around requests, responses, and stateless messages. A client asks a server for content using methods like GET or POST. MQTT uses a broker and topics: clients publish messages and subscribe to topics to receive updates. This setup fits devices that must stay connected even on limited networks. ...