Day 12. Network Theory

CompTIA Network+ N10-006 Exam Topics

Image 5.2 Explain the basics of network theory and concepts

Key Topics

Today’s exam topic includes details about the layers of the TCP/IP protocol suite as well as network theory and concepts. Therefore, our review will progress through the layers.

The TCP/IP Application Layer

The application layer of the TCP/IP model provides an interface between software, such as a web browser, and the network itself. The process of requesting and receiving a web page works like this:

1. An HTTP request is sent, including an instruction to “get” a file, which is often a website’s home page.

2. An HTTP ...

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