Top MongoDB Interview Questions and Answers

The top MongoDB Interview Questions and Answers are given here. The level of questions is suitable for beginners as well as advanced database developers.

Let’s begin!

Ques1. MongoDB is a ______ database

  1. SQL
  2. NoSQL

Ques 2. Which command is used to display all the databases in MongoDB?

  1. show databases
  2. display databases
  3. show dbs
  4. display dbs

Ques 3. Which method is used to delete a database in MongoDB?

  1. dropDatabase()
  2. dropDB()
  3. delDB()
  4. deleteDatabase()

Ques 4. Which method is used to insert a single document in a MongoDB Collection?

  1. insertion()
  2. insertOne()
  3. addOne()
  4. add()

Ques 5. Which method is used to insert multiple documents in a MongoDB Collection?

  1. insertMany()
  2. addMany()
  3. insertion()
  4. None of the Above

Ques 6. Which method is used to display MongoDB documents in a formatted way?

  1. format()
  2. formatted()
  3. prettyDoc()
  4. pretty()

Ques 7. Which command is used to show all the Collections in a MongoDB database?

  1. display collections
  2. show collections
  3. displayall collections
  4. showall collections

Ques 8. Which operation selects the MongoDB documents that fail all the query expressions in the array?

  1. AND
  2. OR
  3. NOT
  4. NOR

Ques 9. Which method is used to sort documents in MongoDB?

  1. sorting()
  2. sorted()
  3. sort()
  4. None of the Above

Ques 10. Which method is used to create an index in MongoDB?

  1. formIndex()
  2. createIndex()
  3. indexCreation()
  4. addIndex()

Ques 11. Can we use MongoDB LIMIT() and SKIP() in the same query?

  1. Yes
  2. No

Ques 12. How to perform Text Search in MongoDB?

  1. Use $text operator
  2. Use $regex operator
  3. Use $where operator
  4. None of the Above

Ques 13. Which method is used in MongoDB to get the query planner and server info?

  1. getMongo()
  2. getCollectionInfo()
  3. explain()
  4. help()

Ques 14. Which method is used to display the statistics of a Database in MongoDB?

  1. statistics()
  2. explain()
  3. stats()
  4. getDbInfo()

Ques 15. ________ is used in MongoDB to Group values from multiple documents together and perform operations on the grouped data to return a single result

  1. Aggregation
  2. Indexing
  3. Sharding
  4. None of the Above

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Read More:

MongoDB Examples
MongoDB Online Quiz
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