MongoDB C100DBA : MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4)

  • Exam Code: C100DBA
  • Exam Name: MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4)
  • Updated: Oct 10, 2026
  • Q & A: 174 Questions and Answers

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About MongoDB C100DBA Exam Questions

In 2026, preparing for the C100DBA exam does not require blocking out your evenings for months. BraindumpsPrep supports self-paced study with 174 practice questions available the moment you have time — plus a written refund policy for candidates who sit the exam within 60 days and do not pass.

MongoDB C100DBA Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Replication and High Availability15%- Deployment and maintenance of replica sets
- Replica set architecture and components
- Failover, elections, read/write concern
Topic 2: CRUD Operations and Indexing20%- Query optimization and aggregation
- Index types, creation, and management
- Create, Read, Update, Delete operations
Topic 3: Security and Access Control15%- Role-based access control
- Authentication mechanisms
- Encryption, auditing, and security best practices
Topic 4: Monitoring, Performance and Troubleshooting10%- Performance tuning and optimization
- Diagnostics and resolving common issues
- Monitoring tools and metrics
Topic 5: Sharding and Scalability10%- Query routing and cluster operations
- Sharded cluster architecture
- Shard keys, chunk management, balancing
Topic 6: Backup, Recovery and Maintenance10%- Logical and physical backup methods
- Data consistency and integrity checks
- Restore procedures and disaster recovery
Topic 7: MongoDB Architecture and Deployment20%- Core concepts, JSON/BSON, data model
- Storage engines and server management
- Installation and configuration

C100DBA Exam: Frequently Asked Questions

The MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) exam includes 60-66 and runs for 90 minutes. Practice pacing with the timed modes in the BraindumpsPrep engines so exam-day time pressure feels familiar rather than frightening.

BraindumpsPrep offers a full refund if you take the MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Claims require a scan of your enrollment slip and the official Score Report PDF, submitted within 2 days of the exam, and are processed within 7 days. An alternative is available too: exchange for two free exam products of equal value and keep your original update service. Orders arrive by email within 1 minute — contact support if nothing shows up within 2 hours.

No mandatory prerequisites; basic knowledge of MongoDB and database administration recommended Since requirements can change, verify the current rules on the official MongoDB exam page before scheduling.

The official MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) outline organizes the exam into 7 domains. The three largest are CRUD Operations and Indexing (20%), Backup, Recovery and Maintenance (10%), and Sharding and Scalability (10%). See the full list in the topics section above — the 174 practice questions at BraindumpsPrep address every domain there.

The C100DBA exam is a MongoDB certification exam that measures the skills defined in the MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) syllabus shown above. It feeds into these credential paths: MongoDB Certified Developer Associate, MongoDB Certified Professional DBA. Candidates range from students to seasoned professionals, and the material at BraindumpsPrep reflects that — 174 practice questions written in accessible language, with verified answers, in PDF, Desktop Test Engine, and Online Test Engine formats.

Yes — MongoDB lists these recommended resources for the MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) exam:

After the coursework, reinforce it with the 174 practice questions from BraindumpsPrep — self-paced, so you can use them whenever your schedule allows.

Registration for the MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) exam costs $150 USD, and the passing score is 65%. Retakes cost the same again, which is a good reason to measure your readiness with the BraindumpsPrep practice engines before booking.

Online proctored exam, taken remotely via secure browser Book the MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) exam through these official channels:

After booking, the BraindumpsPrep practice questions — delivered by email within 1 minute of purchase — let you start preparing the same day.

The complete MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) preparation set: 174 practice questions in three formats — a printable, expert-prepared PDF with instant download; a Desktop Test Engine for Windows with two practice modes and offline access that simulates the real exam; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS, with test history and performance review. A free demo lets you sample everything first, updates are free for 365 days, renewal afterward costs 50% of the standard price, and installations are unlimited.

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

Question #1

What feature is one of the differences between using MongoDB and a relational database management system (RDBMS) database?

  • A. Sharding
  • B. Replication
  • C. Flexible Schema
  • D. Authentication
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Explanation: Only visible for BraindumpsPrep members. You can sign-up / login (it's free).

Question #2

If the value of totalKeysExamined is 30000 and the value of totalDocsExamined is 0, which of the following option is correct?

  • A. The query returned 0 documents
  • B. The query used an index to fetch the results
  • C. The query returned 30000 documents after scanning the documents
  • D. None of the above
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #3

If you have created a compound index on (A,B, C) which of the following access pattern will not be able to utilize the index?

  • A. B, C
  • B. A, B
  • C. A, B, C
  • D. A
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #4

Consider a contacts collection that contains these documents:
{ " _id " : 1, " name " : " Poppy " , " birthday " : " 03-09-1984 " }
{ " _id " : 2, " name " : " Ashley " , " birthday " : " 08-12-1990 " }
{ " _id " : 3, " name " : " Cleo " , " birthday " : " 11-02-1976 " }
What query returns the document where the field name is " Poppy " ?

  • A. db.contacts.find({ " name " : " Poppy " })
  • B. db.contacts.find({ " name " : " poppy " })
  • C. db.contacts.find({ " name.Poppy " : 1 })
  • D. db.contacts.find({ " Poppy " : 1 })
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Explanation: Only visible for BraindumpsPrep members. You can sign-up / login (it's free).

Question #5

Consider the following documents:
You perform the following query;
How many documents will be updated by the query?

  • A. 5
  • B. 0
  • C. 1
  • D. 2
  • E. 3
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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