Question 1

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?

Options :

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

Answer: D

Question 2

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?

Options :

A : 200, more

B : No limit, none

C : 20, it

D : 50, it

Answer: C

Question 3

Which mongodb tools allow us to work with our data in a human readable format?

Options :

A : mongodump

B : mongostat

C : mongoimport

D : mongoexport

Answer: C,D

Question 4

In order to ensure that you can maintain high availability in the face of server failure, you should implement which of the following?

Options :

A : Sharding

B : Properly defined user roles

C : Replication

D : Put indexes on all of your documents

E : The proper storage engine

Answer: C

Question 5

'mongoimport' command is used for

Options :

A : Batch data insertion

B : None of the above

C : Multiple command import

D : Multiple command insertion

Answer: A