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Finally understand networking_

Master the fundamentals of networking and understand how data travels across the Internet.

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Course under construction...

This course awards a unique certificate of completion for your resume

Designed for developers, by a developer

Level: Junior
Duration: ~0 hour
Content: 0 modules ● 0 quizzes

A technology used by

CiscoIBM

Understanding networking means stopping coding blindly: it's a key skill that makes the difference in the workplace.

Nicolas Brondin-Bernard, founder of Code-Garage

They're talking about the platform

Course goals

Understand the basics of computer networks and their role in the web.

Identify how IP addresses work, DNS and TCP/IP protocols.

Analyze the exchanges between client and server in a web application.

Understand the role of ports, protocols and network infrastructure.

Debug common issues such as timeouts or DNS errors.

Prerequisites

No technical prerequisites: simple curiosity about how the Internet and data exchanges work is enough.

Course under construction...

Why learn Network ?

Networking is one of the most underrated skills among developers… and yet, it’s often what makes the difference between someone who "codes" and someone who truly understands what they’re doing.

When an API doesn’t respond, a site is slow, or a request fails, the problem doesn’t always come from the code. It can come from DNS, ports, the network, or the infrastructure.

Without these fundamentals, you’re forced to test at random. With them, you’re able to quickly diagnose a problem, saving an enormous amount of time.

It’s also a key skill for better collaborating with devops, sysadmin, or backend profiles, and understanding technical discussions within a company.

For a junior developer, mastering networking means moving from an “executor” profile to one that’s autonomous, credible, and efficient.

By the end of this course

By the end of this course, you will finally understand how data travels across the Internet and be able to diagnose network issues like a professional developer.

Course under construction...

Course content

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Frequently asked questions

All courses are designed by working developers, using an approach based on real-world cases and actual business needs.

No unnecessary theory: only what will be useful to you in the field.
Of course!

We have a subscription dedicated to schools, which gives you access to all the courses on the platform.
Each course is broken down into short modules (2 to 10 minutes), so you can learn at your own pace.

You can progress gradually, even with little time available.
Yes, many courses are accessible with no prerequisites.

And for more advanced topics, the necessary basics are always clearly indicated to guide you.
Yes, most courses include concrete projects.

The goal is for you to be able to immediately apply what you learn, just like in a real situation.
Yes, you can ask your questions directly under the modules.

You're never alone when facing a roadblock.
Code-Garage focuses on the essentials: short, concrete courses that are directly useful at work.

No unnecessary content, only what helps you progress quickly.
Yes, each course awards a unique certificate of completion that you can add to your resume or share on LinkedIn.

Course under construction...