Explanation:MongoDB then stores the results in a collection. 5. Point out the wrong statement :
A. MongoDB also provides map-reduce operations to perform aggregation
B. The pipeline provides efficient data aggregation using native operations within MongoDB
C. Map-reduce can specify a query condition to select the input documents as well as sort and limit the results
D. None of the mentioned
Answer:A
Explanation:MongoDB then stores the results in a collection. 5. Point out the wrong statement :
A. MongoDB also provides map-reduce operations to perform aggregation B. The pipeline provides efficient data aggregation using native operations within MongoDB C. Map-reduce can specify a query condition to select the input documents as well as sort and limit the results D. None of the mentioned
Explanation:Aggregation is the preferred method for data aggregation in MongoDB. 6. The output of the reduce function may pass through a ______ function to further condense or process the results of the aggregation.