Today I sat the JNCIS-ENT exam. As my previous post let on, I didn’t pass the exam the first time. I was close but not close enough. I felt it was a fair exam and I am going break it down. I have used the template that Ethan Banks has used for review of his CCIE written attempt. I felt it gave great information.

Exam Quality

Liz Burns and the JNCP team has ensured that the exam delivered by Pearson Vue is of a top quality. I found that the font was easy to read which made for analysis of questions less stressful. Network Diagrams were of a high quality without errors. The only little issue I had were when example snippets of text were actually pictures and when enlarged they blurred a little. That is no worries but for someone like me who has kittens in an exam room, it made it a little stressful. Maybe in the popup box, text could appear opposed to a picture.

Exam Topic Coverage

The routing and switching topics covered in my opinion were of a high level. If comparing to Cisco Systems CCNA and ROUTE/SWITCH exams from the CCNP, I would say there would be a mix. I found the questions to cover each topic fairly though I seemed to have a lot on OSPF LSA types and where they’d appear, IS-IS, and BGP redistribution. I didn’t have to memorize many silly things like odd protocols and numbers. I enjoyed seeing some of the obscure ones as I already knew it from a recent trouble ticket! Cough IP type Cough 🙂

Exam Difficulty

This isn’t a walk in the park. Especially when you book the wrong exam. I went to book JNCIS-SEC and accidentally booked JNCIS-ENT. I manned up and accepted the challenge. Shame I missed it by 3 percent. Juniper specifics were my weak point – not enough exposure. If you are working on your Juniper skills you want more than just a fiddle at the command line. It requires labbing and reading and more labbing. I found that the questions were not your run of the mill “What port does BGP run on?” and the like. That being said, 1/3 of the questions were substantially easier than others.

I think this myriad of difficult, if consistently delivered will help alleviate brain dumpers. As long as no one gets an exam of all simple questions.

Exam Preparation

I do have a background in networking and my workplace is 100 percent Cisco Systems so I rely on what I already know. I own an SRX110H-VA and it is my device in where I work with. I used the FastTrack guides on the JNCP page for this course. I did some light RFC reading. I felt, although I didn’t pass, was enough to cover the topics asked. On my next attempt I am actually going to print the JNCIS workbooks for ENT and mark and draw on them a bit more.


Juniper really have taken the best feedback of all exam paths (Microsoft, Cisco) and produced a sound environment to test knowledge. It actually felt like a test which was a proving ground of knowledge. My previous pass on the JNCIA-JUNOS was a totally different experience. I’d like to take this opportunity to thank Juniper for delivering easily accessible material for their courses. This provides the answer to any excuse a Cisco-only engineer has to taking up Juniper studies.

I will meet JNCIS-ENT before February 4th again. This time, I will take my certificate.

Today, January 21, I sat the exam again. I did some more revision on the exam blueprint topics and I came out with a pass! 94%! My views on the exam are the same as before!

6 thoughts on “Juniper Networks JNCIS-ENT Exam Review

  1. Hi Anthony,

    Thanks for sharing your experiences.

    When I sat for my (very) first Avaya exam this past fall the computer froze up on the third question – thankfully the staff was able to recover the session and I passed.


  2. Congratulations on passing Anthony, it was a difficult exam for sure. I was able to get it the first time, but only just. I am brushing up on the topics I was weak in, and plan on sitting the JNCIS-SEC as well as the JNCIP-ENT within the next year. Good job!

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