In this course we continue our journey to CCNA course by doing basic introductory to Cisco operating systems for devices as well as basic commands.

The course starts with IOS basics which includes the different Cisco NOS or Network Operating System, which platforms they normally are installed on and some introductory topics about IOS which is the NOS we learn for CCNA course.

Next we go with available CLI assistance options and how they can help us to interact easier and more efficient when we deal with IOS.

Troubleshooting is the major role of every network engineer. Cisco IOS has two effective command which can help us to do troubleshooting. In the next step we became familiar with these two commands and how we can benefit from them.

Each network can contain different types of components which is normally relies on the requirements and the available budget. I introduced some of the common ones in the next video.

There are different types of memory modules in a Cisco device. Each of them has it's own characteristics and stores specific information. I showed you how are these memory types organized and cooperate with each other. Also, how they are engaged when a Cisco device starts up.

After all, we started to get our hands a bit dirty with some basic configuration commands.