Free MongoDB C100DBA Exam Questions

Become MongoDB Certified with updated C100DBA exam questions and correct answers

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Total 134 Questions | Updated On: Aug 19, 2026

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Question 1

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

A : ngostat

B : ngotop

C : ngorestore

D : ngodump

Answer: A

Question 2

'mongoimport' command is used for

A : tch data insertion

B : ne of the above

C : ltiple command import

D : ltiple command insertion

Answer: A

Question 3

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 : ert command instead of update command

B : {update: true, insert: true} as the third parameter of update command

C : is has to be handled in application code (Node.js, PHP, JAVA, C#, etc.) and cannot be handled in mongo shell query

D : ecify {upsert : true } as the third parameter of update command

Answer: D

Question 4

Which of the following collections stores authentication credentials in MongoDB?

A : t.users

B : cal.users

C : tem.users

D : ers.users

Answer: C

Question 5