As the VCAP-DCV Design 2020 certification is going to be released (but the 3V0-624 exam is not scheduled to be retired yet) on Jan 1, 2020.
Recently I made another post about my experience with this exam where I failed, check it here.
For your information, at the moment the 3V0-624 is the current exam code for the VCAP-DCV 6.5 Design certification (Also named VCAP-DCV Design 2019), always check the code for the exam no matter which is the certification name.
I decided to share with you some notes for this kind of exams no matter which version.
This information will be more helpful for people that have never taken this exam rather than those who are experienced in these advanced exams.
The Design exams (VCAP-XXX Design) are mainly for IT Architects (sounds cool?) but, why for architects? Well, if you check the blueprint, you will see a couple of sections and not many objectives. The truth is hidden inside each section, which is huge and covers many aspects.
Could you pass this exam without being an IT architect? Of course!
Many did it (not in my case yet) by studying and having a lot of design experience, or also helped doing designs with other peers for example. Also, you can gain all the knowledge of all areas and study your main gaps.
The goal is to design VMware solutions to meet specific goals and requirements, ideally, you should have advanced knowledge of storage, network, compute, end-user computing environments and other components.
You will have to develop a conceptual design given a set of customer requirements, determining which requirements needed to create a logical design and after that creating a physical design with these items.
As you are aiming for a VMware certification, you must think in all solutions, features, and elements from vSphere.
Here is a list of the solutions that appear in the Blueprint and are related to VMware of course:
Inside each solution, you should know at least the most of the features, functionalities that they offer, dependencies between them and test them (if you can).
Apart from knowing about these technologies related to VMware, there are obviously the core areas that compose a general IT infrastructure: Storage, networking and compute.
So, be prepared to dig on each area and know about dependencies between each other and with other solutions.
Advanced knowledge is desirable (and you will be tested) on each area would deserve more than post so, I am not going to explain anything right now about it 🙂
>Aiming for the exam
Your main guide must be the blueprint, no matter what other unofficial guides say (although they are very helpful). In the blueprint you will have all the sections and objectives that will be qualified.
This exam requires to read a lot (more if your daily job isn’t designing solutions) and not just books to gather information about how to gather requirements from the customer and match them to terminologies like RAMPS or RRAC (I will explain a bit of those later), also all the technical papers that the blueprint mention (+50).
Conceptual, Logical and Physical Design, you will see this a lot and once you understand it, you will see why.
You must check all the references (documents) that the blueprint mentions because most of them will appear in the exam.
Some key points from all the features, elements or products I think will be:
- Dependencies: Know the dependencies between solutions. What do you need to enable vSAN, apart from at least 1 SSD/Flash and 1 SAS/SATA disk? It also requires vCenter and DNS.
- Advantages and disadvantages: Does SRM perform replication? Is HA better to ensure availability than FT? Which solution can achieve a 5-minute RPO? vSAN
- Maximums and limitations: vSphere 6.5U1 supports a maximum of 4 PSCs per site, behind an LB. Also a maximum of 10 PSCs per vSphere Domain.
- Upgrade paths: How would you upgrade a vSphere 6.0 environment to 6.5 with external PSC?
- Determine RCAR: Differentiate between requirements, constraints, assumptions, and risks.
- RAMPS: Build recoverability, availability, manageability, performance, and security into a vSphere Logical Design.
- Gather and analyze business and application requirements from customer interview data, determine customer priorities for defined objectives and categorize those requirements by infrastructure qualities.
In the post, I mentioned to you at the beginning there are some resources which are quite helpful in order to learn and improve your non-tech skills.
There is so much information to digest if you don’t have a certain level of knowledge in vSphere and the «art» of designing solutions, which could lead you to study a lot of products, methodologies, and features in probably, a great amount of time.
But don’t be impatient, it will take you time but, review each section and check the concepts, products or features that you’re not familiar with.
Check videos and other unofficial guides that probably will make other fellows from the community.
This exam is about theory so, you will be tested as an architect who designs solutions based on customer or application requirements and how to match them to a VMware design.
It is difficult to generalize all the things that can appear in past, present, and future VCAP-DCV Design certifications but I tried to give you as much information as I can.