Professional Data Engineer

There are many questions on the web that are either outdated or wrongly answered. I am trying here to filter all those questions and provide you with a nice tool to practice the exam similar to the real-life exam as much as possible.
This small app was designed with love to help you 5 things:
1. question content is updated monthly in 2025, so you don’t have to worry that these question is outdated anymore.
2. With 2 EXACT-FILTERING features, you can focus easily on questions you are making mistakes or missing.
3. Save difficult questions offline. So you can practice them later when you have free time.
4. Examination mode will help you take test like a real exam. So you will be more confident.
5. NEARLY-100% questions are packed with straightforward explanations. You will know why it is correct or wrong. No more confusing.
In sum, this app is simple and straight-to-the-point like description you are reading.
Have fun and enjoy the app!