Microsoft Certified: Azure Cosmos DB Developer Specialty

Measured data

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Microsoft Certified: Azure Cosmos DB Developer Specialty

DP-420

We scored 60 real Microsoft Certified: Azure Cosmos DB Developer Specialty exam questions 1-10 on question complexity and broke the result down by exam domain.

60 questions scored
5 domains
2.0/10 overall complexity

Complexity by exam domain

Higher scores mean more demanding question formats. The exam score is computed over the whole bank, not averaged across domains.

Exam complexity score2.0/10Gentle · measured across 60 bank questions
  • Design and implement data distribution5 questions · complexity 2.0/10 · Gentle

    40% multi-select · 0% scenario · 20% interactive

  • Design and implement data models23 questions · complexity 2.2/10 · Gentle

    39% multi-select · 0% scenario · 30% interactive

  • Integrate an Azure Cosmos DB solution5 questions · complexity 2.0/10 · Gentle

    40% multi-select · 0% scenario · 20% interactive

  • Maintain an Azure Cosmos DB solution16 questions · complexity 1.9/10 · Gentle

    31% multi-select · 0% scenario · 31% interactive

  • Optimize an Azure Cosmos DB solution11 questions · complexity 2.0/10 · Gentle

    36% multi-select · 0% scenario · 27% interactive

Full per-domain breakdown

Blueprint weight, bank size and question format mix for every domain of the exam.

DomainBlueprintQuestionsSingleMultiInteractiveComplexity
Design and implement data distribution8%52212.0/10Gentle
Design and implement data models38%238872.2/10Gentle
Integrate an Azure Cosmos DB solution8%52212.0/10Gentle
Maintain an Azure Cosmos DB solution28%166551.9/10Gentle
Optimize an Azure Cosmos DB solution18%114432.0/10Gentle

How the score is calculated

The formula is fixed and public, so anyone can reproduce these numbers from the same bank.

Every question in the Microsoft Certified: Azure Cosmos DB Developer Specialty bank is measured on four signals that can be read directly from the database. Each signal is expressed as a share of the questions in the domain, and the four shares are combined with fixed weights:

  • Multi-select questions (40% weight). Items with more than one correct answer. The candidate has to find all of them, which is the single hardest format in the bank.
  • Scenario questions (30% weight). Questions longer than 150 characters, which describe a situation instead of a definition and therefore test reasoning rather than recall.
  • Interactive questions (20% weight). Items that require reading code or a configuration snippet.
  • Deep explanations (10% weight). Questions whose explanation runs past 300 characters, which signals a concept with real nuance behind it.

The combined share is multiplied by ten to produce a 1-10 score. The exam-level score is computed over the whole bank rather than averaged across domains, so a small domain cannot distort the total. Figures on this page are recomputed from the live bank on every crawl.

Data set: Certilum Microsoft Certified: Azure Cosmos DB Developer Specialty Foundation question bank, 60 questions, 5 domains. Published by CERTILUM. This is Certilum’s own measurement of its own question bank and is not an official Microsoft statistic.

Questions analysed
60
Exam domains
5
Hardest domain
Design and implement data models (2.2)
Most approachable domain
Maintain an Azure Cosmos DB solution (1.9)
Question mix
22 single · 21 multi · 17 interactive
Measured on
Foundation

Frequently asked questions

What our Microsoft Certified: Azure Cosmos DB Developer Specialty complexity numbers mean and how they are produced.