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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

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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.

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