Explanation:MongoDB provides a rich set of aggregation operations that examine and perform calculations on the data sets. 2. Point out the wrong statement :
A. Map-reduce cannot have a finalize stage to make final modifications to the result
B. Map-reduce is less efficient and more complex than the aggregation pipeline
C. Specifically, a user with the userAdmin role can grant itself any privilege in the database
D. All of the mentioned
Answer:A
Explanation:MongoDB provides a rich set of aggregation operations that examine and perform calculations on the data sets. 2. Point out the wrong statement :
A. Map-reduce cannot have a finalize stage to make final modifications to the result B. Map-reduce is less efficient and more complex than the aggregation pipeline C. Specifically, a user with the userAdmin role can grant itself any privilege in the database D. All of the mentioned