MongoDB interview questions part 27
MongoDB interview questions part 27
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. The __________ JavaScript shell and the MongoDB language drivers translate between BSON and the language-specific document representation.
Correct Answer is : mongo
2. Point out the correct statement :
Correct Answer is : MongoDB stores chunks on disk in the XML serialization format
3. BSON is a binary representation of ________ documents,
Correct Answer is : JSON
4. MongoDB documents are composed of field-and-value pairs and have the following structure:
Correct Answer is : field1: value1
5. Point out the wrong statement :
Correct Answer is : The maximum BSON document size is 16 megabytes
6. To store documents larger than the maximum size, MongoDB provides the _______ API.
Correct Answer is : GridFS
7. The ______ field is always the first field in the document.
Correct Answer is : _id
8. To ensure functioning replication, do not store values that are of the _______ regular expression type in the _id field.
Correct Answer is : None of the mentioned
9. Index keys that are of the _______ type are more efficiently stored in the index.
Correct Answer is : BinData
10. MongoDB uses the ________ notation to access the elements of an array and to access the fields of an embedded document.
Correct Answer is : Dot
11. Which of the the following data structures are documents in MongoDB ?
Correct Answer is : All of the mentioned
12. Point out the correct statement :
Correct Answer is : Update definitions define what fields to modify during an update
13. An application communicates with MongoDB by way of a client library, called :
Correct Answer is : Driver
14. User-defined indexes on multiple fields is called :
Correct Answer is : compound index
15. Point out the wrong statement :
Correct Answer is : None of the mentioned
16. Which of the field is reserved for use as a primary key ?
Correct Answer is : _id
17. If your driver has a version number of 2.9.1, What is the major version ?
Correct Answer is : 2
18. Updates that include _________ of field names may result in the reordering of fields in the document.
Correct Answer is : Renaming
19. The $rename operator logically performs an _______ of both the old name and the new name.
Correct Answer is : $unset
20. ____________ pattern requires additional steps of working with strings and regular expressions.
Correct Answer is : Materialized Paths
