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
