Databricks Certified Data Engineer Professional
Practice with intent. Pass with proof.
A local-first study app built on spaced repetition and the testing effect — 452 verified questions and 49 deep lessons, tuned to the 2025-11-30 blueprint.
452
verified questions
49
teaching lessons
10
exam domains
59 / 120m
mock exam
Study modes
Learn
Concept-by-concept with immediate feedback and a reasoning step.
Practice
Section quizzes, blueprint-weighted, feedback on every question.
Adaptive drill
Your due cards + weakest concepts, scheduled by FSRS.
Mock exam
59 questions, 120 minutes, exam-weighted. Delayed feedback.
Review
Misses, low-confidence-correct, and flagged questions.
Blueprint coverage
10 / 10 domains with lessons1Developing Code for Data Processing22%63 Q13 lessons
2Data Ingestion7%27 Q2 lessons
3Data Transformation, Cleansing & Quality10%48 Q4 lessons
4Data Sharing & Federation5%25 Q2 lessons
5Monitoring & Alerting10%23 Q5 lessons
6Cost & Performance Optimisation13%90 Q6 lessons
7Security & Compliance10%62 Q6 lessons
8Data Governance7%15 Q2 lessons
9Debugging & Deploying10%79 Q4 lessons
10Data Modelling6%20 Q2 lessons
Every domain has verified questions and deep lessons — a connected course you can read in order, then test section by section.