This digital flash card book is designed to be an ancillary to the classes, labs, and hands on practice that you have diligently worked on in preparing to obtain your DP-200 & DP-201: Azure Data Engineer certification. Majority of the terms are taken directly from the Microsoft Learn website. It is meant as one of the end steps in your preparation for the DP-200 & DP-201 exam. This book is short, but It will give you a good gauge of your readiness. This book is optimized for mobile devices and apps. Every turn of the page will give you 1 side of a flash card. Another turn gives you the other side of the card. I suggest going through the flash cards several times from beginning to end. This will test your ability to define the key terms from the definition. Learning can be seen in 4 stages: 1. Unconscious Incompetence 2. Conscious Incompetence 3. Conscious Competence 4. Unconscious Competence This book will assume the reader has already gone through the needed classes, labs, and practice. It is meant to take the reader from stage 2, Conscious Incompetence, to stage 3 Conscious Competence. At stage 3, you should be ready to take the exam. Only real-world scenarios and work experience will take you to stage 4, Unconscious Competence. Before we get started, we all have doubts when preparing to take an exam. What is your reason and purpose for taking this exam? Remember your reason and purpose when you have some doubts. Obstacle is the way. Control your mind, attitude, and you can control the situation. Persistence leads to confidence. Confidence erases doubts.