Tag Archives: certification

VCIX-NV Exam Experience

VCIX-NVAfter passing my VCP-NV – the entry level certification for VMware NSX network virtualization technology as soon as it was available I scheduled its advanced exam called VMware Certified Implementation Expert. While there is Expert in the name it should not be confused with VCDX (VMware Certified Design Expert) which is the next level certification. The VCIX is actually more similar to the vSphere or Cloud VCAP Administration exams (VCAP-DCA or VCAP-CIA). Although the exam was announced in October I had to wait till end of November to take it with one test center asking me to reschedule it elsewhere.

The exam concept is very similar to other VCAP Administration exams – cca 4 hours of lab tasks which are usually related to each other. The lab is a nested virtual environment hosted most likely somewhere in west coast USA. You are accessing it remotely while using small test center 4:3 low resolution monitor through a test app that switches screens between the questions and RDP jump box. The awkwardness of switching between questions and the environment (copy paste is not working) together with high latency that makes VM consoles screens redraw line by line (I had to make them smaller to actually see ping results in real time) and PDF manual reading impossible, all that makes the test experience very hard. vSphere Web Client slowness and browser crashes did not help either.

I also had issues understanding some of the questions – I provided feedback through the test tool (bad idea – you will loose precious time) and internally at VMware so I hope that will get fixed in the future.

On the other hand the tasks that you should be implementing or troubleshooting were actually a lot of fun. If I would do those in my lab they would not be that hard but I must admit that I ran out of time, did skip 2 tasks and did not solve 2 troubleshooting ones. As there is altogether about 17 questions I was not sure if I passed but today (after 1 week of waiting) I received email with a passing score.

So what about preparation? I would recommend going through the Hands on Lab or the NSX Install Configure Manage labs as those are very similar to the testing lab. For the troubleshooting I would propose building your own lab from scratch and redoing all the lab tasks from ICM course – this will provide experience of quickly finding the touch points to check when something is not working (emphasis on quick as there will not be enough time to read manual and experiment in the actual exam). Work through all the chapters mentioned in the blueprint. The exam covers most of them.

Good luck!

VCP-NV Exam Experience

VCP-NVDuring VMworld 2014 VMware released new certification track – Network Virtualization. There is already quite a big number of bootstrapped VCDX-NVs which is the highest certification level and it is also nowNV certification track possible to schedule the entry level VCP-NV exam.

 

As I think that NSX is a great technology I am going for this certification track and immediately scheduled VCP-NV in my nearby PearsonVue test center and today took the exam.

While not having much time for preparation I obviously downloaded the exam blueprint and was surprised how extensive it is –  nine objective categories ranging from the NSX architecture, VXLAN, distributed routing and firewalling, Edge services up to service composer, vSphere standard and distributed switch features and vCloud Automation Center integration. From the sheer content it looks like it is not going to be a simple exam.

I have been working with NSX for some time so was pretty confident in all the areas. Prior the exam I reviewed those areas I work less with (Service Composer, Activity Monitoring, dynamic routing protocols – BGP, IS-IS) and went through the packet walks (VM, VTEP, Controller, Multicast, Unicast, etc) for switched, routed and bridged traffic.

In April I passed Cisco CCNA certification so this gave me good opportunity to compare these two entry level networking exams from two major vendors with completely different SDN strategy.

VCP-NV is obviously heavily based on VMware NSX so do not expect much OpenFlow SDN or any Cisco ACI there. Compared to CCNA there is also no basic network theory (subnetting, OSI model, protocols). There are 120 questions in 2 hour time window which is quite a lot. But all are multiple choice questions – no CLI simulators or flash based questions. The questions cover all blueprint areas and my assumption is they are up to the level of VMware NSX: Install, Configure, Manage training which I did not take (only its VMware internal bootcamp predecessor). I was able to go through the test quite quickly – there is usually no reason to dwell on a particular question longer than 30s. You either know the answer or not.

The questions were mostly clearly written which made taking the exam quite enjoyable experience (well it might have been shorter). You get the result immediately and in my case it was a pass.

My recommendation for potential candidates: know vSphere networking (including the advanced features – NetFlow, Port Mirroring, …), have hands on experience with NSX – if you cannot get the bits or do not have a lab use the NSX Hands-On Labs, which are really good and lastly take the NSX ICM course!

Now back to my VCDX-NV design…

My Journey to VCDX-Cloud

VCDX-Cloud Yesterday morning my twitter and mailbox exploded – I got an email from Mark Brunstad, who is the VCDX Program Manager that I have achieved the VCDX-Cloud Credential and that I am the first person to do so. Mark as a good PR person informed the whole internet about it so congratulations started coming from everywhere. I would like to thank you all with this blog post and also describe how difficult (or easy) the journey has been.

What should be mentioned first that I work at VMware Professional Services as an architect and that VCDX certifications very well align with what I do for my job. This is very important as I can take experiences, knowledge gained and designs from my customer engagements and apply them in the steps needed to gain the certification. I can imagine that for someone who wants to become VCDX and works in pre-sales, admin or manager role it is much harder as he will need to do a lot of stuff beyond his regular job. I used to be project manager and I know how hard it was to get my first VCP.

As I passed my VCDX 5 – Data Center Virtualization last year in Barcelona my path to VCDX-Cloud was much easier as can be seen from this picture taken from VMware Certification website.

VCDX-Cloud_path

I just had to pass both cloud VCAP exams (CIA and CID) and submit application and design, but did not need to defend it. In order to prepare panels for VCDX-Cloud defenses for VMWorlds in San Francisco and Barcelona, VMware internally organised bootstrap review which gave me the opportunity to become the first VCDX-Cloud certification holder.

I took beta exams for both VCAP-CID and CIA and blogged about them here and here. The VCAP – Cloud Infrastructure Design was the hardest one I ever took and also because I did not allocate enough time for it I had to leave the exam room early before finishing half of the ‘Visio’ design tasks and failed it. So I had to take it again when it was GA and again had hard time with it as I expected vCloud Director 5.1 questions and it was still based on 1.5 version. Anyway I passed it.

The VCAP – Cloud Infrastructure Administration was also not easy as it is hands on exam on real environment in USA with high latency (I am in Europe). After getting both cloud VCAPs I had to just wait for the release of VCDX-Cloud blueprint and application.

It is actually possible to use the same design for VCDX-DCV and VCDX-Cloud certifications (obviously as long as it covers objectives of both certifications). My Barcelona VCDX-DCV design was actually based on vCloud Director 1.5 public provider project so I could just use the same one. I thought that it would be too easy so I actually did not do it and instead sent an updated design for vCloud Director 5.1. Although I could reuse many materials from the customer engagement (like Operational Guides) I still spent significant time rewriting and polishing the design. The point is that the design is supposed to show your skills, choosing simple (small) project is possible however it might not give enough opportunity to show advanced skills and then the scoring will be low. The scored areas are specified in the blueprint – my advise is don’t just cover them but try to go extra mile (be innovative, do not use just out of the box features, etc. – example could be Fast Provisioning with VAAI, scripting, VXLAN, disaster recovery, etc.). BTW my main design document had 160 pages.

And that was it. No defense necessary. I was actually kind of sad as the defense in front of the live panel is the most adrenaline and most fun of the whole journey (who likes sitting 4 hour Pearson Vue exams, or polishing Word document for 10th time, …). My hope is now to become the VCDX Cloud panelist in Barcelona 2013 and meeting some of you there.

Endnote: No I am not going after VCDX-DT – someone else can be the first triple X.

VCAP-Cloud Infrastructure Administration Exam Experience

VMware has just now released the second vCloud VCAP (which stands for VMware Certified Advanced Professional) Exam - Cloud Infrastructure Administration (VCAP-CIA). I have blogged about the other one – Cloud Infrastructure Design (VCAP-CID) 7 months ago so I thought it would be good to write about my experience from the beta exam I took 2 months ago as well.

If you are familiar with the vSphere equivalent exam VCAP Datacenter Administration (VCAP-DCA) then you will find it very similar. It is 100% hands on exam with a series of tasks that have to be done on live vSphere/vCloud/Chargeback infrastructure. You start at a control desktop and then from there you get to the lab environment using any client of your choice (SSH, RDP, web browser, vSphere Client).

It is important to note that the lab environment is based on vCloud Director 5.1 (contrary to VCAP-CID where all the questions were based on vCloud Director 1.5). The questions follow the exam blueprint (as usually) quite well so I would recommend to review the blueprint before the exam. As I do vCloud for living it is hard for me to recommend training or studying resources – I thing very good hands on experience with vCloud Director, vShield Manager, Chargeback and RHEL is necessary to be successful. Only hard prerequisite is to be VCP and it does not matter if VCP-DCV (the former vSphere VCP-DV), VCP-DT (View) or VCP-Cloud. If you are not VCP-Cloud passing VCAP-CIA (or VCAP-CID) will give you VCP-Cloud certification by default.

The 29 questions are supposed to be solved in sequence as they are sometimes related and it is not possible to easily jump from one to another. You have to go forward or backward one question at a time. Some questions might be skipped though. Standard VMware documentation in PDF form is accessible during exam however VMware KB is not.

I had major problem with latency which showed its ugly head when typing “vmware1!” password which was universally used. The last character ‘!’ requires two keystroke pressed at the same time which did not work most of the time. That was pretty annoying during tasks that took a few minutes and failed because of wrong password. At the end I used copy – paste for the password – knowing this upfront it would save me quite a lot of time. Besides confusing wording of another question I had no real issues with the lab environment.

I have to say I really enjoyed the exam tasks and was impressed how the lab was set up. It is obvious it required some effort from the exam makers and I applaud this. I commented on my issues and as it was a beta it the final release might be different.

I am now eager for the result in order to take the next step to VCDX-Cloud.

The VCDX Experience

Two weeks ago on Tuesday in Barcelona I had the privilege to take part in my VCDX defense. It was very exciting experience and I want to share it here. It was the culmination of very long process which has begun sometimes in December almost three years ago when I achieved my first VMware certification – the VCP 4 exam. That is when my ambitions to achieve the highest VMware certification started.

Prerequisities

However it took me almost two more years to achieve VCAPs DCD and DCA. I blogged about those exams here and here. By then I started working for VMware Professional Services and was waiting for the right project which would result in VCDX level of design. And this besides the consulting experience is the most important thing for achieving the VCDX. Although it is possible to write a fictitious design during your spare time, it has some pitfalls. First of all, writing a good fictitious design is hard. There is a whole article about it here why. The main reason is that the person who comes with fictitious design probably did not go through a real VCDX caliber design and is not experienced enough. And then there is the problem with time. Writing a design takes a lot of time and then you also have to write the supporting documents – operational guide, deployment procedures, etc. And to write that during your free time takes a lot of commitment.

Design

I was waiting almost another year till the right project came. It was a big vCloud Director project. vCloud projects which usually consists of two vSphere environments – the management and resource and there are plenty of opportunities to show your design skill. From the beginning while working on the project I wrote all the design materials with the VCDX in my mind. For example I tried not only to document the design decision, but also explain why they were taken. I went far beyond what the project required and was creating additional documents during my free time that were not in the Statement of Work just for the sake of certification. The design has been reviewed by my PSO colleagues and obviously the customer, which helped to find any mistakes or inconsistencies. John Arrasjid estimated that it takes on average about 40 hours of extra work on an existing design to submit it for VCDX defense. I would say that number seems pretty conservative to me, as this is the most laborious part of the process.

Meanwhile I passed VCP and both VCAPs exams for vSphere 5 and since the project was vSphere 5 based I applied for the new VCDX version 5 which defenses were held for the first time (although there are already many upgraded VCDX5s). When I learned that my design was accepted and I was invited it means the design scored enough points to be considered passable. I just had to present it well, answer any questions and then do well on other two parts of the defense, which are 30 minute custom design and 15 minute troubleshooting sessions where the panelists act as customer.

Bootcamp

Although I have read all the FAQs on VCDX community forum and seen the recorded 1 hour VCDX defense simulation session from VMWorld website I was glad to have the chance to participate during 4 hour VCDX boot camp lead by John Arrasjid which was held just two days before my defense on Sunday. In my opinion the boot camp was incredibly useful especially for the custom design and troubleshooting parts. Not only we were told about the format of the defense, what to expect, but also received many tips, things to do and things not to do. We went through two retired scenarios for each session and were given valuable feedback.

Defense Preparation

For the design defense the candidate is supposed to prepare short 15 minute PowerPoint presentation with executive summary of the design. While I was preparing it I wanted to include all the blueprint sections however there was no way I was able to fit that in 15 minutes. Instead I created presentation that had 26 slides, covered all the topics included all the important pictures and had also some hidden slides in case. It was still so long even if I omitted all vCloud Director parts that were not directly relevant to vSphere design (my design had about 160 pages without the other documents like implementation plan, installation guide, operational procedures, validation plan, etc.)

One tip you get during the boot camp is that you have to know your design. And not only the parts you had written, but also the parts that were designed by someone else. In my case the Cisco UCS compute design and Nexus 1000V configuration was done by Cisco architects so I spent a lot of my preparation time there. Just rereading the whole design once again was useful as I forgot some details even though I wrote it just couple of months ago.

Defense

You do not get to know who is in your defense panel before you enter the room. When I saw the panelists I was humbled. They are obviously all VCDXs but for example I had also 13 year VMware veteran on the panel who is considered storage expert and writes books on the topic. You do not get chance like that every day to speak to these guys for two hours and let them comment your design which they read.

I told the panel right away that my powerpoint presentation is quite long and that they should interrupt me anytime to ask the relevant question. And the timing was almost perfect. I finished the last slide when the 75 minute time was up. Although that might seem as pretty decent amount of time and even though I was trying to speak fast and to the point it went by very quickly and I felt I could talk about the design for much longer.

Then you get 15 minute break outside when I chatted with the other candidate doing the defense at the same time next doors. Then they call you back and the custom design session starts. It is not that easy as it might look, mainly because the problem presented is not fully described and you have to be able to get a lot of info from the panelists who represent the customer. Do not jump straight to the design, get the requirements from them first. The time is a real constraint here and it helps to have experience asking customers the right questions. The time is really short so I also tried to concentrate on those parts of the design that would show my skills which I could not in the first part of the session. In my case it was storage.

Then you go straight to the troubleshooting scenario. It is only a 15 minute session where again the panelist represent the customer and a problem is described. Do not make the mistake to focus just on one area where you might think the problem is. Start from the big picture, try to eliminate all the possible sources of the problem – storage, compute, network, and then dive deeper and again try to eliminate different components. The panelists are looking for systematic approach not for shooting in the dark.

And then that is it. I was told to wait up to 10 days for the result. I was pretty spent after 2.5 hours of constant talking being alert and trying to look smart, but at the same time I was thrilled and satisfied that I came all the way to this point. I knew that even if the result would be negative it was worth it.

The wait was actually longer than 10 days and after constant email checking the VCDX Design Defense Results Letter has finally arrived – I am VCDX #99!