What is the exist operator?
What is the default port of mongodb server?
What is the limitations to run mongodb on 32 bits OS?
What is the difference between min key and max key?
How do you delete a document from a collection?
Define the mongodb aggregation?
What is the difference between $lt and $lte?
Define mongodb?
What is the meaning of projections in mongoDB?
What is the term match in mongodb?
What is the use of mongodb sort()?
Which function is used to create an index?
How do you know the all indexes available for a collection?
What is skip() method?
Which method is used to update multiple document?