As an IT professional, I've had occasion to use Microsoft Visio perhaps two or three thousand times. Given that it has been the de facto standard in creating visual representations of complex architectures and other technological concepts for close to two decades, it's likely you've encountered the tool yourself.
Generally speaking, it's all well and good to open the application, choose applicable stencils for your project (bundled or those you've downloaded from a third party), and start dragging shapes onto the page. A few labels and some strategically placed lines, and you've got yourself a passable diagram ready to share with your colleagues... yay. There are sometimes, however, when one of these third parties make available a well-intended, but ultimately awful, set of stencils that they invite you to use to document their nifty widgets and doodads... thus was my experience recently when I downloaded Amazon's AWS Visio stencils, and this blog post details what I did about it.
Amazon Web Services offers certification testing for IT professionals interested in advancing their careers in the Amazon realm.
In September 2015, I completed the certification exam for the AWS Certified Solutions Architect - Associate. It is by far one of the most difficult certification exams I have ever taken. The exam is designed to measure your "technical expertise in desinging and deploying scalable, highly available, and fault tolerant systems on AWS."