MongoDB Online Quiz

mongodbquiz

It’s time to test the MongoDB skills after learning all the MongoDB tutorials. This free MongoDB Quiz will help you prepare for the interview with MongoDB.

MongoDB Quiz is not just a test, but a parameter that will measure your knowledge and capabilities, especially for you. So, if you want to check the basics please refer to our MongoDB tutorial series before taking this advanced MongoDB assessment test.

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#1. By default, db.collection.explain() runs in ___________ verbosity mode.

#2. Point out the correct statement.

#3. Aggregation Pipelines have a limit of:

#4. What function do you use to format the query results in mongo shell?

#5. With the _______ storage engine, MongoDB uses memory-mapped files to store data.

#6. ____________ returns information on the query plan for aggregate function.

#7. What command will you use to display the database you are using?

#8. What is default port for MongoDB server?

#9. MongoDB reports its triggered page faults as the total number of page faults in ________ second.

#10. Point out the wrong statement.

#11. What command will you use to list all available databases?

#12. The memory usage statuses metrics of the _________ output can provide insight into MongoDB’s memory use.

#13. What is the output of the following program?

#14. Which of the operator is used to access the query field of documents within system.profile?

#15. You can inspect __________ to check the amount of mapped memory that mongod is using

#16. What does the following query do when performed on the posts collection? db.posts.update({_id:1},{Title:This is post with ID 1″})

#17. What is a replica set node which does not maintain its own data but exists only for voting purpose called?

#18. Create or insert operations add new documents to a collection. If the collection does not currently exist, insert operations will create the collection.

#19. The difference between $push and $addToSet is:

#20. Which of the following is correct about MongoDB?

Finish

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