- The exam has 75 multiple-choice questions in 90 minutes for a $150 fee via ProctorU.
- CRUD (26%) and Indexes (18%) together make up 44% of the entire exam.
- Completing the free 13-hour MongoDB Database Admin Path gets you 50% off your attempt.
- Security (15%) and Replication (14%) are the next-heaviest domains after CRUD and Indexes.
Exam Snapshot
Before you memorize a single index operator, lock in the mechanics. MongoDB University administers the MongoDB Associate Database Administrator exam through online ProctorU proctoring, meaning you sit it from your own machine under webcam monitoring rather than at a testing center. The current official exam page lists 75 multiple-choice questions in 90 minutes, a $150 fee, English-only delivery, and no formal prerequisites - anyone can register.
That last point matters. Because there's no gatekeeping requirement, the exam blueprint itself is the real filter. If you want the long-form version of everything below, the MongoDB-DBA Study Guide 2026: How to Pass on Your First Attempt walks through a full preparation sequence. This cheat sheet is the condensed, one-page version you print out or keep open in a tab during your last week of review.
Domain Breakdown at a Glance
The MongoDB Associate Database Administrator blueprint spans eight domains. Weightings are not evenly distributed, and treating them as equal is the single most common planning mistake candidates make. Here's the full picture in one table.
| Domain | Weight | Priority Level |
|---|---|---|
| CRUD | 26% | Highest |
| Indexes | 18% | Very High |
| Security | 15% | High |
| Replication | 14% | High |
| Server Administration | 10% | Moderate |
| Monitoring | 9% | Moderate |
| Philosophy and Features | 7% | Light |
| Backup and Recovery | 1% | Minimal |
For a domain-by-domain breakdown with sample topics and learning objectives, see the MongoDB-DBA Exam Domains 2026: Complete Guide to All 8 Content Areas. If you're still deciding how much total effort this exam requires relative to other certifications, How Hard Is the MongoDB-DBA Exam? Complete Difficulty Guide 2026 covers that in depth.
CRUD and Indexes: The 44%
CRUD and Indexes combined make up 44% of the exam - nearly half the questions you'll face. Treat these two domains as non-negotiable mastery areas, not just topics to review.
Domain 2: CRUD (26%)
The single heaviest domain on the blueprint. Expect scenario-based questions on query construction, update operators, aggregation stages, and how write operations behave under different conditions.
- Query operators and how they combine in compound filters
- Update operators versus replacement documents
- Aggregation pipeline stage ordering and output shape
- Bulk write behavior and ordered vs. unordered operations
Domain 3: Indexes (18%)
The second-heaviest domain. Questions here test whether you understand index types conceptually, not just their syntax.
- Single-field, compound, and multikey index behavior
- When a query can and cannot use an existing index
- Index selectivity and its effect on query performance
- Text and TTL index use cases
Because these two domains sit at the top of the weighting, most of your practice-question time each week should be spent here. The MongoDB-DBA Passing Score 2026: Exactly What You Need to Pass article explains how domain weighting interacts with your overall score, which is worth reading before you finalize a study plan.
Security and Replication Essentials
After CRUD and Indexes, Security (15%) and Replication (14%) form the next tier of importance. Together with the top two domains, these four areas account for the large majority of the exam's weight.
Domain 6: Security (15%)
Covers authentication mechanisms, authorization models, and encryption concepts as they apply to a deployed cluster.
- Role-based access control and built-in roles
- Authentication methods and when each is appropriate
- Encryption in transit vs. encryption at rest
- Auditing configuration basics
Domain 7: Replication (14%)
Tests your understanding of replica set behavior, not just terminology.
- Replica set elections and failover mechanics
- Read preference modes and their tradeoffs
- Write concern and read concern interactions
- Oplog behavior and resynchronization scenarios
Key Takeaway
Study Security and Replication as a pair - both domains frequently test how configuration choices affect data consistency and availability under failure conditions.
Server Administration, Monitoring, Backup
The remaining domains carry lighter weight but still appear on every exam attempt. Don't skip them entirely - a 1% domain still represents a question or two out of 75.
Domain 4: Server Administration (10%)
Deployment, configuration files, and process management for standalone and clustered instances.
- Configuration file structure and key parameters
- Starting, stopping, and managing mongod/mongos processes
Domain 5: Monitoring (9%)
Tools and metrics used to observe cluster health and diagnose performance issues.
- Key metrics for memory, connections, and operation latency
- Log file interpretation for troubleshooting
Domain 1: Philosophy and Features (7%)
Conceptual foundation - document model, schema design philosophy, and core feature set.
- Document-oriented data model versus relational structures
- Core feature differentiators of the database
Domain 8: Backup and Recovery (1%)
The lightest domain by far. A single question likely covers backup strategy fundamentals.
- Backup approaches and restore fundamentals
Because this bottom tier is so lightly weighted, a light pass through the material is sufficient - don't let it eat time better spent on CRUD or Indexes.
Registration and Fee Mechanics
The logistics are straightforward but worth confirming before exam day. Registration happens through MongoDB University, delivery is in English, there are no formal prerequisites to sit the exam, and the exam runs on ProctorU's remote proctoring platform. Accommodations are available for qualifying candidates with disabilities or for whom English is a second language - request these well ahead of your scheduled date.
For the complete cost breakdown including what the discount path involves, read the MongoDB-DBA Certification Cost 2026: Complete Pricing Breakdown. If you're unsure whether you meet eligibility criteria or need accommodations, the MongoDB-DBA Requirements 2026: Eligibility, Prerequisites & How to Qualify article covers that in full, and MongoDB-DBA Exam Dates 2026: Testing Windows, Deadlines & Scheduling explains scheduling windows.
Final-Week Review Plan
If you only have limited time left before your scheduled attempt, allocate it in proportion to domain weight rather than evenly across all eight areas.
CRUD and Indexes
- Run timed practice sets focused on query construction and index selection
- Review aggregation pipeline stage order until it's automatic
Security and Replication
- Drill role-based access control scenarios
- Walk through replica set failover and read/write concern combinations
Admin, Monitoring, Philosophy, Backup
- Skim configuration and monitoring metrics
- Light review of backup/recovery fundamentals - one question's worth of effort, not more
Full Simulation
- Take a full-length, timed practice exam under real 90-minute conditions
- Review every missed question by domain before your attempt
Running full-length timed simulations on our practice test platform before exam day is the closest you can get to replicating the actual 75-question, 90-minute format without spending your real attempt.
Who Actually Hires for This Credential
Organizations running production MongoDB deployments - whether on Atlas or self-managed clusters - look for this credential when hiring database administrators, site reliability engineers, and backend infrastructure staff responsible for cluster health, security configuration, and replication topology. It signals verified, hands-on familiarity with the exact domains listed above rather than generic database theory.
If you're evaluating whether this certification translates into career movement, the MongoDB-DBA Salary Guide 2026: Complete Earnings Analysis and Is the MongoDB-DBA Certification Worth It? Complete ROI Analysis 2026 articles go deeper on that question. For current openings that reference this specific credential, browse MongoDB-DBA Jobs.
Frequently Asked Questions
The exam consists of 75 multiple-choice questions to be completed in 90 minutes, delivered in English through ProctorU online proctoring.
Complete the free 13-hour MongoDB Database Admin Path first - it earns you 50% off your exam attempt fee, bringing the $150 cost down significantly.
CRUD (26%) and Indexes (18%) together account for 44% of the exam, making them by far the highest-value domains to master.
No. There are no formal prerequisites, and the exam is open to anyone who registers and pays the fee, subject to available accommodations.
Not extensively. It represents only 1% of the blueprint, so a light conceptual review is sufficient compared to the time you should spend on CRUD, Indexes, Security, and Replication.