MongoDB DBA Practice Test

The MongoDB DBA Practice Test is a free intermediate-level, 20-minute skill test from Science of Apps. Practice for MongoDB database administration — the document model, CRUD and indexing from an operations view, replication with replica sets and elections, sharding and horizontal scaling, backup, recovery and monitoring, and security, users and performance tuning — written to the official MongoDB manual for 2026. Score 70% or more on its 20 questions to earn a verifiable MongoDB DBA Readiness certificate (SOA-MDBA). Every question is based on published standards and research — including MongoDB manual (MongoDB, Inc.) — and each answer is explained with its source.

Yes. Science of Apps has a free MongoDB DBA Practice Test built on the current exam outline for 2026 and 2027. It covers document model and CRUD, indexing and performance, replication and sharding and backup, security and operations, scores you instantly and issues a verifiable certificate.

Read the four skill areas on this page, then take the 20-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a MongoDB DBA Readiness certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: MongoDB manual (MongoDB, Inc.). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Four skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Document Model and CRUD (Documents, Operations and Data types); Indexing and Performance (Indexes, Query plans and Tuning); Replication and Sharding (Replica sets, Elections and Sharding); Backup, Security and Operations (Backup, Security and Monitoring). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

MongoDB database administrator, Database reliability engineer, Backend engineer running MongoDB, DevOps engineer and Data platform engineer. It suits anyone who wants a quick, verifiable way to show MongoDB DBA knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

A MongoDB DBA designs and maintains clusters: configuring replica sets and sharding, managing indexes and performance, running backups and recovery, securing access, and monitoring health. The role focuses on availability, scalability and data safety.

A replica set is a group of mongod instances holding the same data for high availability. One primary takes writes and replicates to secondaries; if the primary fails, an election promotes a secondary so the cluster keeps serving.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

20 questions — 5 from each of 4 skill areas — with a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

We rate it Intermediate: assumes hands-on experience in the role. It has 20 scenario questions — 5 from each of 4 skill areas — and a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.