Hi everyone! First of all, let’s ignore the fact that I haven’t written anything on this blog in the last 6 years 🙂
I have recently passed the VMware Certified Advanced Professional — Network Virtualisation Deployment (3V0–643) exam after an long and arduous study marathon. I would like to share my experience on this journey and hopefully I can give you some insight or inspiration if you’re planning to pursue the same goal.
NSX is an amazing technology and the demand for NSX experts in the industry is booming. VCIX6-NV is a great title to differentiate yourself in the competition. Speaking of VCIX; the Network Virtualisation certification track still has no VCAP-NV Design exam at the time of writing. So passing VCAP-NV Deploy exam will automatically grant you the VCIX6-NV title.
Just to set things straight, it’s not an easy exam. There are no dumps, no multiple choice questions that you can use your educated guess. You need to sit down and implement the tasks that are asked on 23 questions. And yes, like most of the lab exams, (irrespective of the vendor or the certification) time is your biggest enemy. I don’t have any statistics, but it’s not unusual to pass this test on the second or third attempt. I made it on my second, which was 6 weeks after my first try.
Why did I fail in the first try
Well, the simple answer is: lack time management. I didn’t exactly know what type of exam was waiting for me. As I said earlier, 205 minutes sound quite long, but will be barely enough. I’ve spent around 45–50 minutes on a question (should be Question 5 or 6), troubleshooting a BGP neighbour adjacency that didn’t going up. I was simply worried that a mistake in the beginning would affect the rest of the exam. That’s wrong. Yes, the entire exam takes place on the same NSX set up, but some questions are linked together, and some are not.
What happens if you fail
You will not get a final screen telling that you have failed. You will learn it 1–2 hours after the exam, via an email with a detailed exam report. The report will have a breakdown of the objectives that you didn’t do well, which will be really useful for preparing for your next attempt.

How did I prepare for the exam
Actually, your preparation method will totally depend on your background. I’m coming from networking background, so I didn’t need to spend any time on networking fundamentals, such as routing, switching, OSPF or BGP. This exam is all about hands on experience and you have an excellent tool called VMware Hands on Labs. I also had the chance to gain additional experience at customer projects at VMware, as well as on my home lab. One way or another, you need to have the hands on experience to pass this test.
After my failed attempt? Nothing much changed. The first thing I did was to get over my frustration, print out the exam blueprint and take notes. I’ve taken detailed notes on every objective on the blueprint, whether I had done well enough or I needed more preparation. If I had done poorly on a topic, say L2 VPN, I’ve re-done (or re-re-re-re-done) the respective HOL (in this example; HOL-1803–01-NET), focusing heavily on the L2 VPN configuration.
Final thoughts and tips
- Your performance on the exam depends on the internet connection and the delay at the your test centre as well. If you encounter any issues, just ask for help.
- The exam is still based on NSX 6.2 at the time of writing. If you have a chance, try to work on an NSX setup on this version. Menus etc. have slightly changed over NSX 6.3 and 6.4, so it’s better to get acquainted with the exam version. That “muscle memory” can save you time.
- Multitasking saves you time. If you’re waiting for an Edge Gateway to go up, there’s no harm in reading the next question.
- Try to get comfortable with working on limited space. When you’re practising the HOL, use a single monitor instead of two and reduce the resolution to 1200 x 720. Chances are that your exam centre won’t offer anything better.
- Besides HOL, refer to the blogs on VCIX6-NV preparation. There are great resources out there, such as; vzealand.com, vcrooky.com, letsv4real.comand many more.
- Know the exam blueprint by heart. If an objective is on the blueprint, you may get it on the exam. If a feature is not on the blueprint, you won’t. Simple but important.
- Network folks, don’t underestimate the vSphere skills required on this exam. You need to be proficient with the vSphere concepts on the blueprint, especially Distributed Switching and Teaming Policies.
Finally, enjoy the process and value the experience that you’ll gather on this journey. If you fail, don’t surrender, fix the gaps and try again. If you pass, congrats, this deserves a celebration 🙂











