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.
Results
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#1. What function do you use to format the query results in mongo shell?
#2. The _______ operator can be used to identify an element in the array to be updated without explicitly specifying the position of the element.
#3. Point out the correct statement.
#4. MongoDB reports its triggered page faults as the total number of page faults in ________ second.
#5. Point out the wrong statement.
#6. What command will you use to display the database you are using?
#7. Create or insert operations add new documents to a collection. If the collection does not currently exist, insert operations will create the collection.
#8. ____________ returns information on the query plan for aggregate function.
#9. The memory usage statuses metrics of the _________ output can provide insight into MongoDB’s memory use.
#10. With the _______ storage engine, MongoDB uses memory-mapped files to store data.
#11. Which of the operator is used to access the query field of documents within system.profile?
#12. What is the output of the following program?
#13. What command will you use to list all available databases?
#14. You can inspect __________ to check the amount of mapped memory that mongod is using
#15. What is a replica set node which does not maintain its own data but exists only for voting purpose called?
#16. Which language is MongoDB written in?
#17. Which of the following command inside aggregate command is used in MongoDB aggregation to filter the documents to pass only the documents that match the specified condition(s) to the next pipeline stage.
#18. By default, db.collection.explain() runs in ___________ verbosity mode.
#19. Aggregation Pipelines have a limit of:
#20. What does the following query do when performed on the posts collection? db.posts.update({_id:1},{Title:This is post with ID 1″})
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