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MongoDB C100DEV practice test 2026: MongoDB Associate Developer

Documents, queries, indexes and data modelling in MongoDB. Topics: MongoDB, Database Design, Indexes, Performance Tuning. Free, timed and scored instantly, with an explanation for every answer.

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Frequently asked questions

How many questions are in the MongoDB C100DEV practice test?

53 questions in 75 minutes, weighted by the official exam areas: CRUD operations (51%): 27 questions; Drivers (18%): 10 questions; Indexes (17%): 9 questions; Document model and data modelling (12%): 4 questions; Data modelling: 3 questions.

Is this MongoDB C100DEV mock exam free?

Free to take: sign in and sit it up to 2 times every 30 days (learners on a GeeksArray course have no limit). Every attempt draws a fresh set of questions.

Are these real MongoDB C100DEV exam questions?

No. They are original practice questions written against the official MongoDB Associate Developer exam guide, so they cover the same areas and difficulty without copying the real exam.

What do I get after the test?

An estimated score, a breakdown by exam area so you know what to revise, and an explanation for every answer.

Before you start

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  • Once started, the attempt counts even if you leave.