MongoDB Interview Questions - 30 | Snaprecruit.com

MongoDB Interview Questions - 30 | Snaprecruit.com

MongoDB interview questions part 30

MongoDB interview questions part 30

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Total Questions: 20

1. Point out the correct statement :

Correct Answer is : Database commands cannot return statistics regarding the current database state with greater fidelity

2. _________ tracks and reports the current read and write activity of a MongoDB instance, and reports these statistics on a per collection basis.

Correct Answer is : mongotop

3. _______ method is useful tool for identifying the database instance’s in-progress operations.

Correct Answer is : db.currentOp

4. Point out the correct statement :

Correct Answer is : MongoDB provides a web interface that exposes diagnostic and monitoring information in a simple web page

5. ___________ returns a general overview of the status of the database, detailing disk usage, memory use, connection, journaling, and index access.

Correct Answer is : db.serverStatus()

6. The ________ reflect the amount of storage used, the quantity of data contained in the database, and object, collection, and index counters.

Correct Answer is : dbStats

7. ________ provides statistics that resemble dbStats on the collection level

Correct Answer is : collstats

8. Which of the following command returns quickly and does not impact MongoDB performance ?

Correct Answer is : db.serverStatus()

9. Which of the following document details the state and configuration of the replica set and statistics about its members ?

Correct Answer is : none of the mentioned

10. The enabled setting for mongod and mongos instances disables the __________ status page.

Correct Answer is : home

11. Which of the following is not a NoSQL database ?

Correct Answer is : SQL Server

12. Point out the correct statement :

Correct Answer is : All of the mentioned

13. Which of the following is a NoSQL Database Type ?

Correct Answer is : Document databases

14. Which of the following is a wide-column store ?

Correct Answer is : Cassandra

15. Point out the wrong statement :

Correct Answer is : Non Relational databases require that schemas be defined before you can add data

16. “Sharding” a database across many server instances can be achieved with :

Correct Answer is : SAN

17. Most NoSQL databases support automatic __________, meaning that you get high availability and disaster recovery

Correct Answer is : replication

18. Which of the following are the simplest NoSQL databases ?

Correct Answer is : Key-value

19. ________ stores are used to store information about networks, such as social connections.

Correct Answer is : Graph

20. NoSQL databases is used mainly for handling large volumes of ______________ data.

Correct Answer is : unstructured

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