# DP-420 Azure Cosmos DB Dev — Practice Questions & Exam Prep

> Practice Questions & Exam Prep (iPhone/iPad app by Davy Raitt.)

- Source: https://appshunter.io/ios/app/dp-420-azure-cosmos-db-dev/id6751795526 (this page in markdown: same URL + `.md`)
- Developer: [Davy Raitt](https://appshunter.io/developer/1795318281)
- Category: Education, Productivity
- Price: $12.99
- Age rating: 4+
- Requires: iOS 15.0 · 27 MB
- Languages: English
- Released: 2025-09-02
- Data updated: 2026-05-18
- User reviews in markdown: https://appshunter.io/ios/app/dp-420-azure-cosmos-db-dev/id6751795526/reviews.md

## What is DP?

PASS YOUR AZURE COSMOS DB DEVELOPER SPECIALTY EXAM

500+ practice questions
5-minute study sessions
Track progress and daily streaks
94% first-attempt pass rate

WHY GET CERTIFIED?
Certified database developers earn up to $203K annually (Skillsoft 2024). Microsoft DP-420 validates expertise in designing and implementing cloud-native applications with Azure Cosmos DB for NoSQL.
WHAT YOU'LL MASTER:

Non-relational data modeling and partitioning strategies
Data distribution, replication, and consistency models
Azure Synapse Link integration and change feed implementation
Query optimization, indexing policies, and performance tuning
Security, backup, disaster recovery, and DevOps automation

STUDY ANYWHERE:
Coffee breaks. Commutes. Lunch hours. Turn dead time into NoSQL database expertise.
Download now. Pass your exam. Master Azure Cosmos DB.


## Version history (last 5 releases)

### 3.0.0 — 2026-04-22

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.

### 2.0.2 — 2026-01-25

Performance and stability improvements

### 1.7 — 2025-11-21

Added more questions

### 1.5 — 2025-10-31

Added more questions

### 1.0 — 2025-09-02

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 2026-05-18.*