Free CCNA Course – the most complete guide


Our journey toward the CCNA starts from this introduction. Here, we will see what jobs await us in the Networking fields and why the CCNA Certification can help us get there. We will also have a high-level overview of what networking is, and why it is really needed. Check these articles to see if networking is really your thing!


CCNA starts with a solid understanding of networking concepts. With the articles in this section, you are going to understand how network works, following two famous way of representing them: OSI model and TCP/IP model.

Configuration Fundamentals

Once you have the knowledge, we can to configure Cisco devices. In this section, we will see how to connect to routers and switches, and how to configure them. We will also introduce the most basic commands of the CCNA Routing & Switching.

Enterprise Services

CCNA is not just about routing and switching. Instead, it requires you to design, implement and scale networks. To create such a functional network, you need to know how to integrate with other systems. In this section, we will see how to configure DHCP, connect to the Internet, design a scalable network and use modern technologies.


In this section, we will present you the advanced concepts of switching for the CCNA. They include Spanning Tree, with tuning features, VTP, EtherChannels HSRP. With this knowledge, you will develop an high-available LAN.


The other key part of CCNA is Routing. In this section, we are going to see some in-depth concepts, spanning from OSPF to EIGRP, and with a basic introduction to BGP to connect to an Internet Provider.


The final rush of the CCNA course is about tools. In this generic section, we will see some technologies we can use to expand and improve our network, such as QoS or Cloud.