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.
A. replicas
B. operators
C. roles
D. All of the mentioned
Answer:A
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.
A. replicas B. operators C. roles D. All of the mentioned
Explanation:User can remove any role from any user from any database in the system. 8. Map-reduce uses custom __________ functions to perform the map and reduce operations