The TCP/IP model, sometimes referred to as the Department of Defense (DoD) Model, is a four-Layer model that was developed in the early 1970s for the Defense Advanced Research Projects Agency (DARPA) ...

To understand the differences between the Transmission Control Protocol/Internet Protocol and the Open Systems Interconnection model, it's helpful to first dig into the individual protocols.

Engineer with 5+ years of experience at AWS. I write about various topics to rid myself of my imposter syndrome. Hey folks, I’m back with this week's post. This week, we’ll be taking a deep dive into ...

When you start learning about networking, you will inevitably encounter two hierarchical models: the "OSI Reference Model" and the "TCP/IP Model." The OSI Reference Model is a 7-layer "reference ...

Transmission Control Protocol (TCP) is a standard protocol on the internet that ensures the reliable transmission of data between devices on a network. It defines how to establish and maintain a ...

Nice to meet you, I'm Sei! In this note, I record and share how to grow as an infrastructure engineer in the AI era, based on my own real-life experiences. When you start studying as an infrastructure ...

Reference models that describe how data moves from one system to another across a network. They matter on the exam because nearly every networking question hides a layer cue: a control, attack, or ...