Most Recent MongoDB C100DBA Exam Questions & Answers

Prepare for the MongoDB Certified DBA Associate Exam exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.

QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the MongoDB C100DBA exam and achieve success.

The questions for C100DBA were last updated on Nov 23, 2024.

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Question No. 1

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

AmapReduce

Bgroup

Caggregate

DAll of the above

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Correct Answer: B

Question No. 2

Using an arbiter allows one to easily ensure an odd number of voters in replica sets. Why is this important?

ATo help in disaster recovery

BTo protect agains network partitions

CTo enable certain read preference settings

DTo add greather redundancy

EFor more efficient backup operations

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Correct Answer: B

Question No. 3

Which of the following about Capped Collections is correct?

AFixed Size

BOnly 'Fixed Size' and 'High-throughput operations that insert and retrieve documents based on insertion order'

CHigh-throughput operations that insert and retrieve documents based on insertion order

DIf the allocated space for a capped collection exceeds, it stops inserting new documents

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Correct Answer: B

Question No. 4

Which option should be used to update all the documents with the specified condition in the MongoDB query?

Aspecify {all: true} as the third parameter of update command

BupdateAII instead of update

Cspecify {updateAII: true} as the third parameter of update command

Dspecify {multi : true} as the third parameter of update command

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Correct Answer: D

Question No. 5

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:

A<replicasetid>.oplog.rs

Boplog.rs

C<database>..oplog.rs

Dlocal.oplog.rs

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Correct Answer: D

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