Free practice test
DP-420Free Azure Cosmos DB Developer Specialty practice test
10 original Cosmos DB Developer questions, playable right now. No account, no card, no email gate. Every answer opens the full explanation: the concept, why the right option is right, and why each wrong option is wrong, cited to the authoritative documentation behind it.
Sample question 1 of 10
Your container has grown and the chosen partition key no longer distributes writes evenly. You need a different partition key on the same data. What does the service require?
Sample question 2 of 10
One container in a shared throughput database was corrupted. Your team asks for a point-in-time restore of just that container. What does Azure Cosmos DB allow?
Sample question 3 of 10
You have an application reading with strong consistency through a dedicated gateway. What does the integrated cache do?
Sample question 4 of 10
A client issues a read and a trigger issues another. What scope does the consistency guarantee cover?
Sample question 5 of 10
A client reads the change feed on a container holding many partition key values. What ordering holds?
Sample question 6 of 10
Your team's multitenant container keyed by /TenantId keeps hitting the logical partition limit, and tenant queries must stay targeted. Which design meets both?
Sample question 7 of 10
Your team sees 2% of production requests returning 429 with acceptable latency. What action is recommended?
Sample question 8 of 10
Which properties does the default indexing policy cover on a new container?
Sample question 9 of 10
Your team's workload writes far more often than it reads, and related data changes constantly. Which trade does normalizing make?
Sample question 10 of 10
A restore must land in an account that lives in a different Azure subscription from the source. What does Azure Cosmos DB support?
Full Cosmos DB Developer question bank coming
We’re writing the complete bank from the official objectives right now. Leave your email and we’ll tell you when it ships, nothing else, ever.
What this test covers
These 10 questions are drawn across the published exam blueprint rather than from one chapter: this set touches Design and implement data models, Maintain an Azure Cosmos DB solution, Optimize an Azure Cosmos DB solution, Design and implement data distribution, Integrate an Azure Cosmos DB solution. Every question is original, written from the official objectives, and verified against a cited vendor page before it serves. None are recalled exam content, which is why the explanations can cite their sources.
A 10-question sample tells you where you stand, not whether you are ready. The full experience is numbered practice exams: 40 questions apportioned to the official domain weightings, sat under the real 100-minute clock and scored against the published cut score.
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Cosmos DB Developer practice questions
Free sample questions with the full explanation on every answer.
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.