MongoDB C100DBA dumps

MongoDB C100DBA Exam Dumps

MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4)
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Exam Code C100DBA
Exam Name MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4)
Questions 132 Questions Answers With Explanation
Update Date September 02, 2026
Price Was : $81 Today : $45 Was : $99 Today : $55 Was : $117 Today : $65

What Is the C100DBA Certification Exam?

The C100DBA certification exam is a standardized assessment designed to measure a candidate's knowledge, competencies, and practical understanding within a defined professional field. It serves as the primary requirement for earning the MongoDB Certified DBA Associate, a credential that represents a recognized level of proficiency in its respective industry. Depending on the field, this may involve theoretical knowledge, applied problem-solving, regulatory understanding, or hands-on procedural competence.

The exam is typically developed and maintained by an accrediting body or professional organization that sets the standards for the MongoDB Certified DBA Associate. This ensures that anyone who earns the credential has met a consistent benchmark, regardless of where they studied or gained their experience. For many professionals, the C100DBA Certification Exam represents a formal checkpoint in their career, one that confirms readiness to take on greater responsibility within their chosen field.

Why the MongoDB Certified DBA Associate Certification Matters?

Certifications like the MongoDB Certified DBA Associate exist because industries need a reliable way to verify competence beyond a resume or a job title. Earning this credential signals to employers, clients, and colleagues that a professional has invested time in building a structured foundation of knowledge and has been evaluated against an established standard.

Beyond individual recognition, the MongoDB Certified DBA Associate certification often supports broader professional development. It can influence hiring decisions, contribute to internal advancement, or serve as a prerequisite for more specialized roles within the field. In many industries, certifications also help standardize expectations across organizations, making it easier for professionals to move between employers or sectors while carrying a credential that is widely understood and respected.

Who Should Take the C100DBA Exam?

The C100DBA exam is generally relevant to individuals who are either entering a field or looking to formalize skills they have already developed through experience. This can include early-career professionals seeking a credential to support their first steps into the industry, as well as experienced practitioners who want official recognition of knowledge gained on the job.

Students preparing to enter the workforce may also pursue the C100DBA exam as a way to strengthen their qualifications before graduating or applying for their first roles. In some fields, employers actively encourage or require staff to pursue this certification as part of ongoing professional development, particularly in industries where standards, safety, or compliance play a significant role in daily responsibilities.

Knowledge and Skills Evaluated in the MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4)

The MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) is built to evaluate both foundational knowledge and the practical judgment needed to apply that knowledge in real situations. Candidates are generally expected to understand core principles and terminology relevant to their field, along with the reasoning behind established procedures, standards, or best practices.

Depending on the industry, this may include understanding regulatory requirements, following established protocols, applying analytical or technical methods, or exercising sound judgment in situations that require careful decision-making. Rather than testing isolated facts in a vacuum, the MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) tends to reward candidates who can connect concepts to realistic scenarios, reflecting the kind of thinking expected in day-to-day professional practice.

C100DBA Exam Preparation Resources

Preparing for the C100DBA certification exam becomes more effective when using high-quality and up-to-date study materials. MyCertsHub provides resources designed to help candidates build knowledge, practice consistently, and become familiar with the actual exam format.

Preparation Features:

  •   132 carefully prepared practice questions
  •   Updated on September 02, 2026
  •   C100DBA Practice Questions & Answers
  •   Comprehensive Study Guide covering the latest exam objectives
  •   Interactive Practice Test Engine for realistic exam simulation
  •   Printable PDF study material for convenient offline preparation
  •   Free Updates For 3 Months
  •   Money-Back Guarantee according to our Refund Policy

How to Prepare for the C100DBA Certification Exam?

Effective preparation for the C100DBA certification exam usually begins with a clear understanding of the exam's objectives and structure. Reviewing official guidelines or documentation published by the certifying body provides the most accurate picture of what will be covered and how heavily different areas are weighted.

From there, many candidates benefit from building a structured study plan that breaks preparation into manageable sections over a set period of time. A well-organized C100DBA Study Guide can help sequence this material logically, especially for those approaching a topic for the first time. Consistent review, paired with realistic practice, tends to produce better retention than concentrated last-minute studying.

Practical experience, where applicable to the field, also plays an important role in preparation. Working through C100DBA Practice Questions and a C100DBA practice test can help candidates identify gaps in their understanding and become familiar with the format and pacing of the actual exam. In fields where hands-on skill is assessed, supplementing study with real-world practice or supervised experience often makes the difference between recognizing correct information and genuinely understanding it.

Benefits of Earning the MongoDB Certified DBA Associate Certification

Successfully earning the MongoDB Certified DBA Associate certification offers benefits that extend well beyond passing a single exam. It provides documented proof of competence that can be referenced on a resume, professional profile, or internal performance review, offering a clear, third-party validation of skill and knowledge.

The credential can also strengthen professional credibility when working with clients, patients, stakeholders, or colleagues who may not be positioned to evaluate technical or specialized knowledge directly. Over time, this recognition often contributes to expanded career opportunities, whether through new responsibilities, higher-level roles, or eligibility for additional certifications that build on this foundational credential.

Prepare for the C100DBA Exam with MyCertsHub

Preparing for the C100DBA exam is a process that benefits from organized, consistent effort rather than rushed, last-minute review. MyCertsHub is designed to support that process by offering study resources, practice materials, and educational content that help candidates understand what the MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) covers and how to approach their preparation thoughtfully.

Whether someone is just beginning to explore the MongoDB Certified DBA Associate or is in the final stages of reviewing material before their exam date, MyCertsHub aims to serve as a dependable resource throughout that journey. Every candidate's path to certification looks a little different, and the goal remains the same: to provide clear, genuinely useful information that supports real understanding of the subject matter.

MongoDB C100DBA Sample Question Answers

Question # 1

Which of the following does MongoDB use to provide High Availability and fault tolerance? 

A. Sharding 
B. Indexing 
C. Replication 
D. Write Concern 



Question # 2

Which of the following node is used during election in a replication cluster? 

A. primary
 B. arbiter 
C. hidden
 D. secondary 



Question # 3

Which of the following index would be optimum for the query? Select all valid. db.test.find( { a : 5, c : 2 }) 

A. db.test.ensurelndex( { c:l, a: 1}) 
B. db.test.ensurelndex( { a : 1, c: 1, d: 1, b : 1}) 
C. CH db.test.ensurelndex( { a :1, c:l}) 
D. db.test.ensurelndex( { a: 1, b :1, c:l, d:l}) 



Question # 4

 Mongodb does provide high availability via which option? 

A. Replication 
B. Indexing 
C. Sharding 
D. Journaling 



Question # 5

The MongoDB explain() method does not support which of the following verbosity mode:

 A. executionStats
 B. queryPlanner 
C. customExecutionStats 
D. allPlansExecution 



Question # 6

The MongoDB explain() method does not support which of the following verbosity mode:

 A. executionStats
 B. queryPlanner 
C. customExecutionStats 
D. allPlansExecution 



Question # 7

What is the equivalent command in MongoDB for the following SQL query? SELECT * FROM posts WHERE author like "%john%" 

A. db.posts.find( { author: /John/ } ) 
B. db.posts.find( { author: /AjohnA/ > ) 
C. db.posts.find( { $like: {author: /John/} } ) 
D. db.posts.find( { author: {$like: /John/} } )



Question # 8

Which option can be used with update command so that a new document gets created if no matching document is found based on the query condition?

 A. upsert command instead of update command 
B. {update: true, insert: true} as the third parameter of update command 
C. This has to be handled in application code (Node.js, PHP, JAVA, C#, etc.) and cannot be handled in mongo shell query 
D. Specify {upsert : true } as the third parameter of update command 



Question # 9

Which of the following about Capped Collections is correct? 

A. Fixed Size 
B. Only "Fixed Size" and "High-throughput operations that insert and retrieve documents based on insertion order" 
C. High-throughput operations that insert and retrieve documents based on insertion order 
D. If the allocated space for a capped collection exceeds, it stops inserting new documents



Question # 10

As per the aggregation pipeline optimization concepts, if you have a $sort followed by a $match: 

A. Providing these parameters in any order does not impact the performance 
B. $sort moves before $match 
C. MongoDB does not do any movements by default and will use the order provided 
D. $match moves before $sort 



Question # 11

What does the following $slice query return using the following command? db.posts.find( {}, { comments: { $slice: [ -10, 5 ] } } ) 

A. Returns 5 comments, beginning with the last 10 items 
B. Returns 10 comments, beginning with the last 
C. Returns 10 comments, beginning with the first 
D. Returns 5 comments, beginning with the first 10 items



Question # 12

In a replica set, a_________number of members ensures that the replica set is always able to select a primary. 

A. Even 
B. Odd 
C. 2 
D. Depends on the application architecture 



Question # 13

Which of the following operators is used to updated a document partially?

 A. $set 
B. $update
C. $project 
D. $modify 



Question # 14

Which is the default mode in which the explain() command runs? 

A. allPlansExecution 
B. customExecutionStats  
C. queryPlanner 
D. executionStats 



Question # 15

Which is the correct order (lowest to highest) in which MongoDB compares the BSON types? 

A. Number, Null, String and Object 
B. Null, Number, Object and String 
C. Null, Number, String and Object
 D. String, Null, Number and Object 



Question # 16

Which of the following aggregation commands in MongoDB does not support sharded collections?

 A. mapReduce 
B. group 
C. aggregate 
D. All of the above 



Question # 17

What does the following query do when performed on the posts collection? db.posts.update({_id:l},{Title:This is post with ID 1"}) 

A. Syntax error 
B. Replaces the complete document with _id as 1 with the document specified in second parameter 
C. Updates the Title of the post 
D. Updating a document is possible only with $set 



Question # 18

Which of the following collections stores authentication credentials in MongoDB? 

A. test.users
 B. local.users 
C. system.users 
D. users.users 



Question # 19

Which command can be used to rebuild the indexes on a collection in MongoDB? 

A. db.collection.createlndex({relndex:l}) 
B. db.collection.reIndex({author:l})
 C. db.collection.relndexQ 
D. db.collection.createIndex({author:l}).reIndex() 



Question # 20

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

A. $ elemMatch 
B. $slice
 C. Updating an array field without knowing its index is not possible.
 D. $ 



Question # 21

Which of the following operator can be used to limit the number of documents in an array field of a document after an update is performed? 

A. $arrayLimit 
B. $push along with $each, $sort and $slice 
C. $removeFromSet 
D. None of the above 



Question # 22

Which mongodb tool is used to report details on number of database operations in MongoDB?

 A. mongorestore 
B. mongostat 
C. mongodump 
D. mongotop



Question # 23

Which of the following is correct about MongoDB? 

A. MongoDB supports geospatial indexes
 B. MongoDB supports some of the SQL functions 
C. MongoDB uses JSON format to represent documents 
D. MongoDB supports collection joins 



Question # 24

JSON stands for 

A. JavaScript Object Notation
 B. JavaScript Object Naming 
C. JavaScript Object Notice 
D. None of the above



Question # 25

JSON stands for 

A. JavaScript Object Notation 
B. JavaScript Object Naming
 C. JavaScript Object Notice 
D. None of the above 



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