Explanation:In addition to the basic queries, MongoDB provides several data aggregation features. 10. Which of the following pipeline is used for aggregation in MongoDB ?
A. data processing
B. information processing
C. knowledge processing
D. None of the mentioned
Answer:A
Explanation:In addition to the basic queries, MongoDB provides several data aggregation features. 10. Which of the following pipeline is used for aggregation in MongoDB ?
A. data processing B. information processing C. knowledge processing D. None of the mentioned
Explanation:MongoDB can return counts of the number of documents that match a query, or return the number of distinct values for a field. Sanfoundry Global Education & Learning Series – MongoDB.