Question

Point out the correct statement.
a) You can specify any executable as the mapper and/or the reducer
b) You cannot supply a Java class as the mapper and/or the reducer
c) The class you supply for the output format should return key/value pairs of Text class
d) All of the mentioned

Answer 1

Answer: a)You can specify any executable as the mapper and/or the reducer
Explanation: If you do not specify an input format class, the TextInputFormat is used as the default.