Free Practice MongoDB C100DBA Exam Questions 2025

Stay ahead with 100% Free MongoDB Certified DBA Associate C100DBA Dumps Practice Questions

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Total 134 Questions | Updated On: Apr 23, 2025

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Question 1

By default, the MongoDB cursor in mongo shell is configured to return how many documents? To get the next set of documents, which command is used?

A : 200, more

B : No limit, none

C : 20, it

D : 50, it

Answer: C

Question 2

You perform the following operation in the shell: db.foo.insert( { } ); What gets inserted?

A : A document will be inserted with the same _id as the last document inserted

B : A document that matches the collection's existing schema, but with null fields

C : A document with an _id assigned to be an Objectld

D : An empty document

E : No document will be inserted; an error will be raised

Answer: C

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 : upsert command instead of update command

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

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

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

Answer: D

Question 4

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

A : mongostat

B : mongotop

C : mongorestore

D : mongodump

Answer: A

Question 5

Which of the following commands can cause the database to be locked?

A : All of the above

B : Inserting data

C : Map-reduce

D : Issuing a query

Answer: A

Page: 1 / 27

Total 134 Questions | Updated On: Apr 23, 2025

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