MongoDB Certified Associate Database Administrator

Measured data

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MongoDB Certified Associate Database Administrator

MongoDB-DBA

We scored 66 real MongoDB Certified Associate Database Administrator exam questions 1-10 on question complexity and broke the result down by exam domain.

66 questions scored
7 domains
2.1/10 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 score2.1/10Gentle · measured across 66 bank questions
  • CRUD Operations18 questions · complexity 2.2/10 · Gentle

    39% multi-select · 0% scenario · 33% interactive

  • Indexes12 questions · complexity 2.0/10 · Gentle

    33% multi-select · 0% scenario · 33% interactive

  • Monitoring & Performance Tuning6 questions · complexity 2.5/10 · Gentle

    33% multi-select · 17% scenario · 33% interactive

  • Philosophy & Features5 questions · complexity 2.0/10 · Gentle

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

  • Replication9 questions · complexity 2.4/10 · Gentle

    44% multi-select · 0% scenario · 33% interactive

  • Security10 questions · complexity 1.8/10 · Gentle

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

  • Server Administration6 questions · complexity 2.0/10 · Gentle

    33% multi-select · 0% scenario · 33% interactive

Full per-domain breakdown

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

DomainBlueprintQuestionsSingleMultiInteractiveComplexity
CRUD Operations27%186662.2/10Gentle
Indexes18%124442.0/10Gentle
Monitoring & Performance Tuning9%62222.5/10Gentle
Philosophy & Features7%52212.0/10Gentle
Replication14%93332.4/10Gentle
Security15%104331.8/10Gentle
Server Administration10%62222.0/10Gentle

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 MongoDB Certified Associate Database Administrator 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 MongoDB Certified Associate Database Administrator Foundation question bank, 66 questions, 7 domains. Published by CERTILUM. This is Certilum’s own measurement of its own question bank and is not an official MongoDB statistic.

Questions analysed
66
Exam domains
7
Hardest domain
Monitoring & Performance Tuning (2.5)
Most approachable domain
Security (1.8)
Question mix
23 single · 22 multi · 21 interactive
Measured on
Foundation

Frequently asked questions

What our MongoDB Certified Associate Database Administrator complexity numbers mean and how they are produced.