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Which of the following file contains user defined functions (UDFs)?

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Which of the following file contains user defined functions (UDFs)?

(a) script2-local.pig

(b) pig.jar

(c) tutorial.jar

(d) excite.log.bz2

I got this question during an online exam.

This interesting question is from Data Processing Operators in Pig in division Pig of Hadoop

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The correct answer is (c) tutorial.jar

To explain I would say: tutorial.jar contains java classes also.

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