JNCIA and Network Fundamentals

There is a very fundamental concept behind the Juniper JNCIA-Junos exams: they expect you to have an understanding of networks before you ever take the exam.

The exam itself expects you to understand concepts such as subnetting and other networking basics. If you are not familiar with subnetting, how it’s done, why it’s done, what it means, etc., please consider taking the CompTIA Network+ exam. The official materials for the JNCIA-Junos exam do not really go over the fundamentals of data networking. (please see the note at the end of this post)

If you need to study or brush up on your networking fundamentals, I can recommend Michael Meyers’ CompTIA Network+ Guide to Managing and Troubleshooting Networks, Second Edition. It is several years old now, but it is still an excellent book.

If you’re looking for something more up-to-date, or if you prefer videos to books, check out Professor Messer’s N10-004 CompTIA Network+ Training Course. They’re free, too!

I don’t think that anyone could stress enough how important the fundamentals are. Although subnetting seemed to be the only fundamental stressed on the JNCIA-Junos exam that wasn’t covered in the official materials, everything on the Network+ exam is important to a career as a network technician, analyst, or engineer.

When I say “official materials,” I am talking about the materials offered via FastTrack. I don’t have the funds to purchase the JNCIA-Junos handbooks or attend the JNCIA-Junos classes. While the FastTrack video does talk about several fundamental concepts, I feel that it does not touch on them enough.

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