I failed the VCAP7-DTM Design exam, but expected it and the first try of the exam showed me what stuff I need to learn better and where my weaknesses are. Let me tell you about my exam experience.
I arrived on time at the PearsonVUE test center, but they had PC problems and so I had to wait first for 30min until I could start the exam. The timer showed me that I have two hours for the 60 questions. The most of the time I was guessing and eliminating the obviously wrong answers and so I was through 50% of the questions of 50% of the time. If you would know a little bit more than I do and you work/worked with all the products on a daily basis, I would say that the exam is a piece of cake!
Nevertheless, I answered all 60 questions 15 minutes before the timer ended, but I didn’t review any of them, because I knew that I still wouldn’t have the better or correct answers. This may sound to you like I failed with a score of 0, but no. I had 252 of the 300 needed points and this is a sign for me that I just need to improve my weak spots and the topics I didn’t check during my preparation time.
Today I’m going to travel to VMware Airwatch in Milton Keynes (UK) for my VMware Workspace ONE: Deploy and Manage [V9.x] training which starts tomorrow. And I have to prepare a presentation for a roadshow with five events where I will be the speaker of a 30min slot. This means no time for studying yet.
But I’m lucky that I still got a seat at the Digital Workspace Livefire Architecture & Design training taking place in three weeks. This will be last part of my preparation for the retake which I planned for 23rd November 2018. But first I have to wait for my new exam voucher. 🙂
I cannot tell you which topics/technologies or questions were asked during the exam, but I can assure you that I didn’t expect some of the questions – they were just craaaaazy or about veeeery old stuff.
This is also one of my problems. You have to study things which are not valid anymore for the today’s product version or implementation. In a few cases the configuration limits or some parts of an architecture have changed.
So, I read the exam blueprint again and checked some of the attached URLs and document links again. In my opinion the following products and versions you should know for the exam:
- Horizon 7.2
- VMware Identity Manager 2.8
- App Volumes 2.12
- User Environment Manager 9.1
- ThinApp 5.1
- Unified Access Gateway 2.9
- vSAN 6.2
- vSphere 6.5
- vRealize Operations 6.4
- Mirage 5.x
So, this was my exam experience of the VCAP7-DTM Design exam and my advices after. It is totally okay to fail, because it will just help you if you are not prepared well enough or just went to early for your first shot.
My last advice: Use the note board for the difficult answers and topics you have no clue of. If you have enough time, reviewed your answers and you are ready to end the exam, memorize all your notes. Just in case you didn’t pass, you now have the notess in your mind and could transfer themto your personal notebook. This is totally legal and really helpful! 🙂
Good luck to you if you take the exam. I have another four weeks now to fill the gaps. 🙂 See if I passed or not.
This is the 8th part of my VCAP7-DTM Design exam series. In part 7 I covered the creation of a physical design for Horizon desktop and pools. Now we take a look at section 7 of the blueprint, the creation of an application architecture design for Horizon 7:
Section 7 – Incorporate Application Services into a Horizon Physical Design
Objective 7.1: Design Application Integration and/or Delivery System(s) using Horizon Application Tools
Objective 7.2: Design Active Directory to Facilitate Application Assignment Objective 7.3: Design and Size RDS Application Pools and Farms
Objective 7.4: Create Application Architecture Design
Objective 7.5: Design Application Integration and/or Delivery System(s) using Horizon Workspace One
The purpose of implementing VMware Horizon 7 is to deliver virtualized applications and/or desktop for end users. You have different methods of application delivery and the delivery depends on many factors. The delivery method can have major impacts on the user experience.
End users want the “fat client experience” – they want speed and performance and ease of use. IT has to define and find a balance between user experience and security and these opposing goals of IT and end users could be a challenge.
Today, people don’t want to wait for anything. They want to use, consume, be independent and have all the permissions they need to download and/or install applications – they just want to do their job. In this case, for example, a self-service portal with workflows could provide the necessary flexibility and security. But what about application performance and delivery?
One of the biggest challenges during a VDI project are legacy applications and IT still has to manage them in 2018. And sometimes, the customer is making the money with legacy applications. If the performance suffers or these applications don’t work anymore, neither does the business.
With Horizon 7 you have different options for app delivery:
- Manually installed applications in the master image or in the virtual desktop
- Delivery using ThinApp, App Volumes or RDSH (RDS application pool)
Each method has advantages, disadvantages and a different way of management. In most of the cases you will find a mix of these application delivery methods, but it depends on your use cases which ones you are going to choose.
I expect you know the features and technology of ThinApp and App Volumes and therefore I don’t explain them further. Just think about flexibility and management. I assume you don’t want to end up with 10 different master images which you have to maintain separately and modify once or twice a week. In general, Office applications and Adobe Reader are installed in the base image and the other applications can be delivered by App Volumes. If you need a “secure browser” (sandboxed browser) environment, then ThinApp is the right solution for this. Maybe you have the same application but with different versions? Then, it depends on the use case and requirement – your options are the manual installation, the delivery with App Volumes and ThinApp. Make yourself familiar with all those methods and also study the multi-site reference guide of each product.
Note: Sometimes it’s hard to know all features of a specific product, but reading and understanding the release notes can save your life sometimes. Example: ThinApp 5.2.3 only supports Firefox version 50.1 and nothing else. Maybe you can install and deploy Firefox 52.9 which is working, but is not officially supported by VMware. And then, when you want to upgrade to 60.1, suddenly the compilation with ThinApp is not working anymore even it was with 52.9, which was also not supported.
If you have read and understood this requirement before, you or your customer wouldn’t have a problem now.
Just think about if you provide secure browsing with Firefox delivered by ThinApp and you have a high security environment. When a new Firefox version gets published which is more secure and is supported by Mozilla, you cannot deliver this browser anymore. What are you doing now? Do you have enough time to find, design and test another solution?
By the way, ThinApp’s general support ends in March 2021.
ThinApp, App Volumes and RDSH have unique characteristics that allow them to increase the user experience and decrease resource utilization. Evaluate each solution and use the appropriate one for your design.
PS: If you are using XenApp/XenDesktop you could also consider App Volumes
This is all I have to say about application delivery without going too deep. Make your homework and know what you need! Next time we take a look at section 8 which is about session management and client devices.