Dbricks Data Eng & AI Tutor

Oriol Dellá i Soler

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About this app

Pass the Databricks® Data Engineer Associate certification with confidence.

This is the complete, up-to-date prep app for the Databricks® Data Engineer Associate certification on a modern lakehouse platform. Built from the ground up around the official exam objectives, with a real AI tutor on every question, full study guides, and 500+ hand-crafted practice questions across all 5 domains.

KEY FEATURES

— Complete Syllabus (10 chapters, 87 in-depth study guides)
Lakehouse™ platform architecture · control plane vs data plane · cluster configuration (driver / worker) · all-purpose vs job clusters · managed SQL compute (Classic / Pro / Serverless) · vectorized query engine · autoscaling and auto-termination · cost units · workspace hierarchy.

— Development & Ingestion
Versioned notebooks · local development · auto-ingest pipelines · schema inference and evolution · rescued data column · AvailableNow vs continuous triggers · incremental COPY INTO · database connectors · cloud object storage · file handling in governed volumes · debugging · Git integration.

— Data Processing & Transformations
Medallion architecture (Bronze / Silver / Gold) · open table format with ACID · OPTIMIZE bin-packing · Z-Ordering · VACUUM and retention · time travel · declarative ETL pipelines · DLT expectations · batch vs streaming · DDL / DML / MERGE syntax · managed vs external tables · schema auto-evolution · liquid clustering · predictive optimization.

— Productionizing Data Pipelines
Job orchestration · DAGs · repair and rerun · job parameters and task values · scheduling and triggers · deployment bundles (YAML) · alerts · secret management · CI/CD · Spark™ UI · serverless workflows.

— Data Governance & Quality
Data catalog metastore (catalogs / schemas) · GRANT / REVOKE · ownership transfer · table and column-level lineage · open data sharing · cost analysis cross-cloud · lakehouse federation · auditing · row-filtered views · volume governance · information schema · ABAC.

— PySpark™ Deep-Dive (Special Block, 20 guides)
DataFrame structure and schemas · wide vs narrow transformations · selection and aliasing · filtering · aggregations · joins and broadcast · null handling · window functions · string and regex · date/timestamp · JSON handling · UDFs and pandas vectorization · partitioning · caching · SQL ↔ DataFrame · format I/O · exception handling · execution plans.

— AI Tutor on Every Question
Stuck? Tap and get a personalized explanation based on your actual answer. Ask follow-ups in plain language.

— 500+ Practice Questions
Hand-crafted for the 5 domain weights (10% / 30% / 31% / 18% / 11%) — daily reps until you nail it.

— Timed Mock Exams
Full simulations with the official time limit and pass threshold.

— Offline Mode + No Ads on Content
Free with rewards (earn coins via streaks + daily rewards). Premium unlocks everything frictionless.

WHO IT'S FOR

Data engineers, analytics engineers, ETL developers, SQL & Python notebook users, platform engineers, cloud architects, and anyone preparing the Data Engineer Associate — the associate-tier certification for production data workflows on a modern lakehouse platform.

PRICING

Free with rewards. Premium unlocks all syllabus topics and gives the AI tutor without spending coins. Monthly or lifetime.

This app is not affiliated with, endorsed by, or sponsored by Databricks® Inc. Databricks® Data Engineer Associate and all related certification trademarks are property of their respective owners.

What’s new

First launch! Complete Databricks® Data Engineer Associate prep:
• 10 chapters, 87 in-depth study guides across all 5 domains
• 500+ practice questions weighted (10/30/31/18/11)
• AI Tutor on every question — tap for personalized explanation
• Timed mock exams matching official format
• Offline mode — study anywhere
• Bilingual EN + ES
• Free with rewards, no ads on content — unlock Premium for frictionless access
Good luck on your Data Engineer Associate!