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MongoDB C100DBA Exam Questions

Exam Name: MongoDB Certified DBA Associate Exam
Exam Code: C100DBA
Related Certification(s): MongoDB Certified DBA Associate Certification
Certification Provider: MongoDB
Actual Exam Duration: 90 Minutes
Number of C100DBA practice questions in our database: 132 (updated: Sep. 01, 2024)
Expected C100DBA Exam Topics, as suggested by MongoDB :
  • Topic 1: Philosophy and Features: This topic of the C100DBA exam, assesses MongoDB Database Administrators on their understanding of MongoDB's core characteristics, its differences from RDBMS databases, access and administration methods, and the concept of sharding. Mastery here ensures a strong foundational knowledge of MongoDB philosophy.
  • Topic 2: CRUD: This topic of the MongoDB Certified DBA Associate exam evaluates administrators on creating, reading, updating, and deleting documents. It measures the ability to handle structured document insertion, updates, upserts, deletions, and query operations. Proficiency in CRUD operations is vital for daily MongoDB database management.
  • Topic 3: Indexes: The C100DBA exam tests knowledge of aspiring MongoDB Database Administrators on optimizing query performance through indexing. Administrators must identify appropriate indexes, understand explain plan outputs, and resolve index-related errors. Effective indexing skills enhance MongoDB database efficiency and performance.
  • Topic 4: Server Administration: This topic of the MongoDB Certified DBA Associate exam focuses on essential server management tasks. MongoDB Database Administrators must demonstrate proficiency in starting, stopping, and configuring mongod, using mongosh, and managing replica sets. Competence in server administration is crucial for maintaining MongoDB database operations.
  • Topic 5: Monitoring: This topic examines the ability to monitor database performance and health. MongoDB Database Administrators should identify alerts, use currentOp, monitor active operations, and manage storage effectively. Strong monitoring skills ensure the MongoDB database runs smoothly and efficiently.
  • Topic 6: Security: The topic assesses the ability to secure MongoDB environments. MongoDB Database Administrators attempting the C100DBA exam must understand TLS, authentication, role-based authorization, encryption, and audit logging. Robust security skills protect MongoDB data integrity and ensure compliance with security standards.
  • Topic 7: Replication: It evaluates understanding of replication processes. MongoDB Database Administrators should grasp the roles of primary and secondary nodes, read preferences, rs.status, write concern, and elections. Effective replication management ensures high availability and data redundancy.
  • Topic 8: Backup and Recovery: This topic of the C100DBA exam, tests the ability to create backups of replica sets. MongoDB Database Administrators need to know backup procedures to safeguard data and ensure recovery in case of failures. Proficiency here is critical for maintaining data continuity and integrity.
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Twanna

2 months ago
Passed the MongoDB DBA Associate Exam with flying colors! Aggregation pipeline questions were challenging. Practice designing multi-stage pipelines and understand when to use $lookup and $graphLookup. Data modeling scenarios were also common – be ready to choose appropriate schema designs for different use cases. Lastly, review MongoDB Cloud offerings and their features. Thanks to Pass4Success for providing relevant practice questions that helped me prepare in a short time!
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Jenifer

2 months ago
Just passed the MongoDB Certified DBA Associate Exam! Be ready for questions on sharding configuration. You might encounter scenarios where you need to determine the best shard key for a given data distribution. Study the impact of different shard key choices on query performance and data distribution. Thanks to Pass4Success for their spot-on practice questions that helped me prepare efficiently!
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Esteban

3 months ago
Successfully completed the MongoDB DBA Associate Exam! Performance tuning was a major focus. Expect to analyze and optimize slow queries using explain() output. Brush up on query plans and index usage. Security questions were also prominent. Study authentication methods and role-based access control. Don't forget about backup and recovery strategies – know the differences between various backup methods. Pass4Success's exam materials were invaluable for covering these topics efficiently.
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Frederick

3 months ago
Just passed the MongoDB Certified DBA Associate Exam! One tricky area was index creation and management. Expect questions on choosing optimal indexes for specific queries. Study B-tree and text indexes thoroughly. The exam also focused heavily on replication concepts. Be prepared to troubleshoot replica set issues and understand failover processes. Sharding was another key topic – know how to design effective shard keys. Thanks to Pass4Success for the spot-on practice questions that helped me prepare quickly!
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Free MongoDB C100DBA Exam Actual Questions

Note: Premium Questions for C100DBA were last updated On Sep. 01, 2024 (see below)

Question #1

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

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Correct Answer: C

Question #2

Which of the following are common uses of the mongo shell? Check all that apply

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Correct Answer: A, B

Question #3

Consider the following document:

> db.c.find()

{ "_id" : 12, b : [ 3, 5, 7, 2, 1, -4, 3, 12 ] }

Which of the following queries on the "c" collection will return only the first five elements of the array in the "b"

field? E.g.,

Document you want returned by your query:

{ "_id" : 12, "b" : [ 3, 5, 7, 2, 1 ] >

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Correct Answer: A

Question #4

Which of the following is true of the mechanics of replication in MongoDB? Check all that apply.

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Correct Answer: C

Question #5

Consider the following document:

> db.c.find()

{ "_id" : 12, b : [ 3, 5, 7, 2, 1, -4, 3, 12 ] }

Which of the following queries on the "c" collection will return only the first five elements of the array in the "b"

field? E.g.,

Document you want returned by your query:

{ "_id" : 12, "b" : [ 3, 5, 7, 2, 1 ] >

Reveal Solution Hide Solution
Correct Answer: A

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