Explanation:Aggregation is the preferred method for data aggregation in MongoDB. 6. The most basic pipeline stages provide __________ that operate like queries.
A. methods
B. filters
C. stored procedure
D. None of the mentioned
Answer:A
Explanation:Aggregation is the preferred method for data aggregation in MongoDB. 6. The most basic pipeline stages provide __________ that operate like queries.
A. methods B. filters C. stored procedure D. None of the mentioned
Explanation:Other pipeline operations provide tools for grouping and sorting documents by specific field. 7. Pipeline stages can use __________ for tasks such as calculating the average or concatenating a string.