MONGODB certification practice

C100DBA Practice Questions

Try 10 free C100DBA exam-style questions for MONGODB C100DBA certification exam. Check each answer and review the explanation and source references.

Exam code
C100DBA
Provider
MONGODB
Free questions
10
Full set
130 questions
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The C100DBA exam validates your expertise and represents a key milestone in your certification path. This exam assesses your ability to design, build, and optimize solutions using core platform features. Whether you are advancing your career or deepening your technical foundation, we provide a structured study roadmap and practical resources to help you prepare effectively. You can start by taking our free C100DBA practice quiz, which includes full answer explanations, or upgrade to our premium C100DBA exam simulator.

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If the value of totalKeysExamined is 30000 and the value of totalDocsExamined is 0, which of the following option is correct?
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The oplog (operations log) is a special capped collection that keeps a rolling record of all operations that modify the data stored in your databases. All the replica set members contain a copy of the oplog in the following collection:
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What does the totalKeysExamined field returned by the explain method indicate?
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Which mongodb tools allow us to work with our data in a human readable format?
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Which of the following is incorrect statement about find and findOne operations in MongoDB?
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In a sharded replicas set environment with multiple mongos servers, which of the following would decide the mongos failover?
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Aggregation Pipelines have a limit of:
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Which of the following operator can be used to control the number of items of an array that a query returns?
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Maintained by the CertMage content team, this page loads questions from the exam dataset connected to its preparation resource. When an answer includes a supporting reference, it is shown with that answer so you can review the underlying vendor documentation.

Certification objectives, interfaces, and vendor services can change. Verify important details against the provider's current exam guide and documentation before your exam.

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