Which of the following database command is used for mapreduce function ?
A. mapReduce
B. mapperRed
C. RedMap
D. None of the mentioned
Answer:A
Which of the following database command is used for mapreduce function ?
A. mapReduce B. mapperRed C. RedMap D. None of the mentioned
Explanation: For map-reduce operations, MongoDB provides the mapReduce database command. 2. Point out the wrong statement :