# DCDEP Data Engineer Pro Prep — Delta Lake DLT Unity Catalog

> Delta Lake DLT Unity Catalog (iPhone/iPad app by Davy Raitt.)

- Source: https://appshunter.io/ios/app/dcdep-data-engineer-pro-prep/id6758736664 (this page in markdown: same URL + `.md`)
- Developer: [Davy Raitt](https://appshunter.io/developer/1795318281)
- Category: Education, Productivity
- Price: Free (on sale, was $12.99)
- Age rating: 4+
- Requires: iOS 15.0 · 27 MB
- Languages: American English
- Released: 2026-02-06
- Data updated: 2026-10-03
- User reviews in markdown: https://appshunter.io/ios/app/dcdep-data-engineer-pro-prep/id6758736664/reviews.md

## What is DCDEP Data Engineer Pro Prep?

PASS YOUR DATABRICKS CERTIFIED DATA ENGINEER PROFESSIONAL EXAM
Master enterprise data engineering with 500+ expert-level practice questions designed to mirror the real certification exam.
500+ practice questions
5-minute study sessions
Track your progress
Remove mastered questions
Text-to-speech support
Dark mode available

WHY GET CERTIFIED?
Databricks Data Engineers earn up to $203K annually (Skillsoft 2024). This professional-level certification validates your expertise in building production-grade data pipelines on the lakehouse platform.

WHAT YOU'LL MASTER:
• Delta Lake ACID transactions with time travel and versioning
• Delta Live Tables (DLT) pipelines with expectations and quality checks
• Unity Catalog governance including metastores, catalogs, and schemas
• Liquid Clustering for optimized data organization and query performance
• Auto Loader for incremental data ingestion with schema inference
• MERGE INTO operations for upserts and SCD Type 2 patterns
• Medallion Architecture (Bronze, Silver, Gold) design patterns
• Change Data Feed (CDF) for tracking row-level changes
• Delta Sharing for secure cross-platform data collaboration
• Databricks Asset Bundles for deployment automation
• Spark performance tuning with partitioning and Z-ordering
• CI/CD workflows with Git integration and DAB deployments
• System tables and monitoring for observability and optimization
• PII masking and row/column-level security controls
• Cost optimization strategies for compute and storage resources

STUDY ANYWHERE:
Coffee breaks. Commutes. Lunch hours. Turn dead time into data engineering expertise.
Download now. Pass your exam. Master the lakehouse platform.


## Version history (last 3 releases)

### 5.0.0 — 2026-09-22

Bug fixes and performance improvements

### 3.0.0 — 2026-04-17

New: Review missed questions after each quiz. Improved quiz experience with radio buttons for single-answer questions. Added exit button during quizzes. Better score display. Stability improvements.

### 2.1.0 — 2026-02-06

No release notes.

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All apps by Davy Raitt: https://appshunter.io/developer/1795318281

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-03.*