In an MongoDB mapReduce command, the reduce function should ____ Options: A . &nbspaccess the database B . &nbspbe called only when the key has a single value C . &nbspaccess the database only to perform read operations D . &nbspnot access the data

In an MongoDB mapReduce command, the reduce function should ___

Question

In an MongoDB mapReduce command, the reduce function should ____

Options:

A . access the database

B . be called only when the key has a single value

C . access the database only to perform read operations

D . not access the data

Answer: Option D

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