Quiz will ask 20 randomly selected questions with allotted time of . You can take the quiz more than once. Once you submit the quiz, you can review how you have done, the correct the answers for each questions and the explanation for the correct the answer.
10 Modules
What is the primary data structure used in MongoDB?
Tables
Documents
Rows
Collections
Which of the following is a valid way to query documents in MongoDB?
db.collection.find({ 'field': 'value' })
SELECT * FROM collection WHERE field = 'value'
db.collection.findOne({ 'field': 'value' })
db.collection.query({ 'field': 'value' })
What is the purpose of the MongoDB aggregation framework?
To perform complex data transformations
To create indexes
To manage user permissions
To perform calculations on data
Which of the following statements about MongoDB indexes is true?
Indexes can improve query performance
Indexes can only be created on string fields
Indexes consume additional disk space
Indexes are automatically created for every field
What is the default storage engine used by MongoDB?
WiredTiger
MMAPv1
In-Memory
RocksDB
10 Modules