DP-420Azure Cosmos DB Developer Specialty practice exams
Original questions written from the published objectives and cited to official documentation, never recalled exam content. How we verify, why not dumps.
- Exam code
- DP-420
- Cost
- $165 USD
- Questions
- 40 to 60
- Duration
- 100 minutes
- Passing score
- 700 (scale 1-1000)
- Format
- Multiple choice, drag-and-drop, hot area, and case studies
Fail and the retake is another $165. Practicing until you are ready is the cheapest part of this. Full cost breakdown.
What the exam tests
Exam domains and official weightings
From the official Microsoft Learn study guides. Put your study time where the weight is.
- Design and implement data models38%
- Design and implement data distribution8%
- Integrate an Azure Cosmos DB solution8%
- Optimize an Azure Cosmos DB solution18%
- Maintain an Azure Cosmos DB solution28%
Coverage by domain
0 verified- Design and implement data models0 / 38% of exam
- Design and implement data distribution0 / 8% of exam
- Integrate an Azure Cosmos DB solution0 / 8% of exam
- Optimize an Azure Cosmos DB solution0 / 18% of exam
- Maintain an Azure Cosmos DB solution0 / 28% of exam
Open now. Nothing is published for Cosmos DB Developer yet. The bank is being written from the official objectives.
Opens next. The first practice exam opens at 40 verified questions, spread across all 5 domains.
Every question here is verified against vendor documentation before it serves, which is why the count grows slowly.
What the exam actually asks you to do
Multiple choice and multiple response, plus drag-and-drop ordering, hot area items where you click a region of a screenshot, and case studies that hold one scenario across several linked questions.
- Multiple choice
- Multiple response
- Drag and drop
- Hot area
- Case study
The highlighted formats are the ones you cannot answer from memory alone. Microsoft Learn, exam duration and question types ↗
Cosmos DB Developer practice exams
No complete practice exam yet. A form is 40 questions apportioned to the official weightings, and a partial one would report a score that means nothing, so none is assembled until the questions are there.
- Open now
- Nothing is published for Cosmos DB Developer yet. The bank is being written from the official objectives.
- Opens next
- The first practice exam opens at 40 verified questions, spread across all 5 domains.
Where Cosmos DB Developer fits
An honest study plan
1. Read the official objectives first
Download the official objectives from Microsoft Azure and skim every line. The exam can only test what’s listed there, it’s the contract.
2. Weight your study toward Design and implement data models and Maintain an Azure Cosmos DB solution
Together the top two domains are 66% of the exam. Practice them until your accuracy is consistently above 80%.
3. Drill weak domains, then sit a numbered practice exam
Use Domain Drill on your weakest areas, then sit a full-length form under exam conditions: 40 questions in 100 minutes, scored against the published pass mark. Book the real exam when you are consistently clearing that, not before.
Official free resources
Study from the source. These are Microsoft Azure’s own materials:
Official Cosmos DB Developer exam page & objectives ↗Keep reading
Cosmos DB Developer passing score
The exact cut score, what kind of number it is, and the retake terms.
How hard is Cosmos DB Developer?
An honest difficulty read from the format, the clock and the weights.
Frequently asked questions
What decides pass or fail on DP-420?
Data modelling, at 38 percent the dominant domain: partition key choice, embedding against referencing, and designing for the request-unit budget. Most wrong answers on this exam are partition keys that will not scale.
Is DP-420 only for the NoSQL API?
The exam centres on the API for NoSQL, with the SDKs, change feed, indexing policy and consistency levels examined through it. Familiarity with the portal alone is not enough; the SDK behaviour is where questions live.
Note on domain weightings
Microsoft publishes weightings as ranges. The figures here use midpoints of the official ranges from the current DP-420 study guide.
Ready to practice for DP-420?
Nothing is published for this exam yet. Join the waitlist and we will tell you when the first questions ship, and nothing else.
Cosmos DB Developer is not for sale yet. A certification goes on sale when it has a complete practice exam behind it, and this one does not, so there is nothing here worth charging for. Everything published is free to answer in the meantime.