C100DBA exam dumps

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  • Exam Code: C100DBA
  • Exam Name: MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4)
  • No. of Questions: 174 Questions and Answers
  • Updated: Oct 28, 2026

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Reading notes is one thing; sitting a timed exam is another. The Actual4Labs test engines simulate the real C100DBA exam environment, so the MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) practice questions feel familiar long before test day.

MongoDB C100DBA Exam Syllabus Topics:

SectionObjectives
Replication- Replica Sets
  • 1. Elections
  • 2. Write Concerns
  • 3. Read Preferences
  • 4. Primary and Secondary Nodes
CRUD Operations- Data Manipulation
  • 1. Delete Operations
  • 2. Read Queries
  • 3. Update Operations
  • 4. Insert Operations
Application Administration- Security and Access Control
  • 1. Authorization
  • 2. User Management
  • 3. Authentication
  • 4. Role-Based Access Control
Server Administration- Database Operations
  • 1. Storage Management
  • 2. Monitoring
  • 3. Backup and Restore
  • 4. Configuration Management
Sharding- Cluster Scaling
  • 1. Balancer Operations
  • 2. Shard Keys
  • 3. Query Routing
  • 4. Chunk Distribution
Indexes- Index Management
  • 1. Index Selection
  • 2. Single Field Indexes
  • 3. Compound Indexes
  • 4. Query Performance Optimization
Philosophy and Features- MongoDB Architecture
  • 1. Collections and Databases
  • 2. Scalability Concepts
  • 3. High Availability Concepts
  • 4. Document Model

Common Questions About the MongoDB C100DBA Exam

The C100DBA exam, officially known as MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4), is the MongoDB test that leads to the MongoDB Certified DBA Associate certification at the Associate level. Passing it validates the skills employers expect from a certified professional. It is also associated with related credentials such as MongoDB Certified Developer Associate.

The C100DBA exam contains 60-66 questions, and you have 90 minutes to complete them. Work out your per-question pace before test day, and flag slow items instead of stalling on them — time pressure, not knowledge, sinks many first attempts. Timed mock exams in the Actual4Labs test engines are the most reliable way to build that rhythm.

The passing score for the C100DBA exam is 490/600, and the official registration fee is $150 USD. If you miss the mark, a retake means paying the full fee again, so book your seat only when you are ready. A practical benchmark: score consistently above the passing line on timed practice tests before scheduling the real exam.

Recommended knowledge of fundamental database concepts, basic system administration, and basic JavaScript. No mandatory prerequisite exam.

Entry requirements can change, so confirm the latest conditions on the official exam page: https://learn.mongodb.com/pages/mongodb-associate-database-administrator-exam.

Yes. A free PDF demo of the MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) questions is available, so you can check the question style and answer quality before you pay. Every purchase also includes 365 days of free updates, and if the product expires you can renew the update service at a 50% discount from your member zone.

If you take the corresponding C100DBA exam within 60 days of purchase and do not pass, you can apply for a full refund under the 100% Money Back Guarantee: submit a scan of your enrollment slip and your official Score Report (PDF) within 2 days of the exam date, and the claim is processed within 7 days. Attempts made within 3 days of purchase, downloads without an actual exam attempt, free materials, and expired orders are not eligible, and the candidate name must match the payer name. Prefer new material instead of a refund? You can exchange your purchase for two free products of equal value and keep the update service on your original product. As for delivery, the files are available for instant download and are also emailed to you within one minute of payment — if nothing arrives within 2 hours, contact customer service. There is no limit on how many computers you can install the product on.

The official MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) outline is organized into 7 domains. The first three are:

  • CRUD Operations
  • Philosophy and Features
  • Replication

See the complete exam topics section above for the full outline and the weighting of every domain.

MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) Sample Questions:

The________operator can be used to identify an element in the array to be updated without explicitly specifying the position of the element.

  • A. Updating an array field without knowing its index is not possible.
  • B. $
  • C. $ elemMatch
  • D. $slice
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

In mongodb how do you update a document partially?

  • A. $update
  • B. $set
  • C. $modify
  • D. $project
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

'$set ' sets the value of

  • A. Key
  • B. None of the above
  • C. Code block
  • D. Name/value pair
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Which of the following commands finds all the documents in the posts collection with post timestamp field as null?

  • A. db.posts.find( { post_timestamp: { $type: null } } )
  • B. db.posts.find( { post_timestamp: { $fieldtype: null } } )
  • C. db.posts.find( { post_timestamp: { $fieldtype: 10 } } )
  • D. db.posts.find( { post_timestamp : { $type; 10 > > )
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Which command is used to determine storage capacity of specific database?

  • A. constats
  • B. mongotop
  • C. dbstats
  • D. mongostat
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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