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____________ method will be called by Pig both in the front end and back end to pass a unique signature to the Loader.

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____________ method will be called by Pig both in the front end and back end to pass a unique signature to the Loader.

(a) relativeToAbsolutePath()

(b) setUdfContextSignature()

(c) getCacheFiles()

(d) getShipFiles()

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The above asked question is from User-defined Functions in Pig in chapter Pig of Hadoop

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The correct choice is (b) setUdfContextSignature()

The explanation is: The signature can be used to store into the UDFContext any information which the Loader needs to store between various method invocations in the front end and back end.

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