D. None of the mentioned
Select the correct statement :
MongoDB scales horizontally using _________ for load balancing purpose.
Point out the wrong statement :
MongoDB supports fixed-size collections called ____________ collections.
____________ are operations that process data records and return computed results.
Select the wrong statement :
Running data aggregation on the ________ instance simplifies application code and limits resource requirements.
Documents enter a multi-stage __________ that transforms the documents into an aggregated result.
Map-reduce uses custom __________ functions to perform the map and reduce operations.
Which of the following operation can be optionally used for map reduce ?