How it works
A pile of practice questions is not a course. This is how you prepare an exam with Prepstellar, concept by concept, until you walk in ready.
Each concept is a short deck of cards, written with the vendor's current study guide open.
One idea per card, tables and diagrams where they help, and a quick check every few cards. You know it stuck before you move on.
Every lesson is narrated, and the text follows the voice.
On the train, at the gym or doing the dishes, the lesson goes with you, at the speed you choose. Back on the page, you pick up where the audio left off.
Ten questions on every concept, each with its explanation.
Score seven out of ten and the next concept opens. Miss it and you know exactly what to reread. Try the one on the right.
AZ-900 · Question 2 of 10
Which set lists all three domains assessed by AZ-900?
Everything AZ-900 can assess maps to one of three broad domains: cloud concepts, Azure architecture and services, and Azure management and governance. Together they cover general cloud ideas, core service families, and the tools to secure, govern, and administer Azure. All three start with the verb describe, so look for broad areas, not deployment tasks or career skills.
Try it: a real question from the AZ-900 course, with the explanation you get after every answer.
The AI tutor knows which card you are on.
Ask why, ask for an example, ask what the difference is. The answer starts from your lesson and stays within your course.
In the SQL, Python and data courses, you complete real queries and scripts.
Drop the right pieces into the gaps, press Check and see why it works, or why it does not. The syntax sticks because you used it.
What you got wrong comes back on a schedule.
Every day you see what is due. Get a question right three times in a row and it stops showing up, so your time goes to what you do not know yet.
Mock exams timed, scored and weighted by domain.
Questions come from the whole course in the proportions of the exam guide. Answers stay hidden until you finish, then you review every one.
A daily goal, a study log and your accuracy section by section.
You always know what you did this week and what is left. When a section lags behind, you see it before the exam does.
Rule one
We write with the vendor's current study guide open, and every claim is checked against the documentation before it reaches you.
Wrong answers come from the same page as the right one. A distractor is a real value from the real documentation, altered. That is why practice feels like the exam and not like a quiz.
The mix
All easy leaves you overconfident. All hard wears you down. The mix tells you honestly where you stand.
Always current
Vendors add services, retire others and re-weight domains. We rewrite the concept that changed, not the whole course, and show you what changed and when.
Lessons you can read, audio you can listen to on the way to work, and practice that remembers what you got wrong.
Opens in your browser. Nothing to install.
Start studyingOn your phone, with the same account
“This app is the ‘One Lake’ for preparing the certification exams. Really worth it.”