My Certification Journey
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My Certification Journey
Juniper Networks Certified Network Design Associate (JNCDA) journey
Jul 28, 2015

My name is Maciej (“Magic”) Kozlowski and I work as Tier 3 WLAN Engineer in ATOS. I cover wireless LAN support for one of our biggest clients: SIEMENS for the whole EMEA region. Previously – for over 5 years – I have worked for: Nokia Siemens Networks/NOKIA on several positions in their network IT department – where I first touched Juniper equipment and I immediately fell in love with it :-).


As soon as I noticed Juniper released their new Design Certification track as well as the Juniper Networks Certified Design Associate (JNCDA) exam I decided to take it just to check and confirm my knowledge about designing networks according to Juniper. Before starting any preparations I took the Practice Test Exam to measure level of my initial knowledge. I got 75% (passing score). Well done Maciek!

Since I was not able to participate any official course available only in Netherlands (for EMEA region) for now nor I can’t afford to buy official course materials from Juniper (Juniper Networks Design Fundamentals, Revision 15.a) I decided to:

  • carefully review exam objectives:,
  • quickly review these Juniper Networks Academy courses: Campus & Data Center Design Specialist Courses (available only for Juniper’s Partners),
  • quickly review selected solution designs and architecture documents for: Campus, WAN and Data Center parts of the network.

After quick all the material review I approached this exam in my local Prometric Examination Center (I consider myself quite lucky since I don’t have to travel much to take any certification exam) … and I passed. Without violating NDA I can say:

  • I got 80% corrected answers – which is a better score then for Practice Test,
  • exam difficulty is on the same level or a little bit harder than available Practice Test,
  • I feel like my work experience and general exposure to Juniper technologies helped me more to successfully pass this exam than doing this two week refresh and exam preparation.

According to my knowledge I am the first ATOS employee who achieved this certification so far.


For next steps I am just waiting for JNCIS- and JNCIP- courses and exams for: Data Center and Security from Design Certification Track. I am also using this certificate as a leverage to be involved more in design projects related to: Campus LAN and Data Center and also to find more opportunities to work as Pre-Sales Engineer and help to offer more solutions to our customers where Juniper hardware will be involved.

Sep 4, 2015

I am excited for the JNCDE!