Network components are the building blocks of any network. They include devices that connect, protect, and manage traffic between users and resources. Understanding how hubs, switches, routers, firewalls, and other network devices work together is essential for troubleshooting and designing reliable networks. This “Do you know this already?” section helps you test your current knowledge. If you can answer most questions correctly, you can safely skip this section and move to the next one.

"Do you know this already?" checkpoint

The “Do you know this already?” section helps you check how well you understand the topics before starting the lessons. By answering the questions, you can see if you already know enough to move on or if you need to review the material in detail. If you are unsure about some answers or find several questions difficult, it’s best to study the whole section carefully before proceeding to the next one.

The Quiz

The following interactive quiz is designed to test if you can safely skip the following section. Additionally, it will put you up to speed with the topic we cover in the section's underlying lessons. Keep in mind that you can make the page wider and the font bigger using the hidden page control on the left-center side of the page.