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Understanding Pig Operations: A Beginner's Guide

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Understanding Pig Operations: A Beginner's Guide

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Questions and Answers

How is data loaded into Pig?

Via a DUMP statement

Using the PigStorage function to interpret fields separated by commas (correct)

Through a STORE statement

By applying a FILTER statement

What is the purpose of the FILTER statement in Pig?

To interpret fields separated by commas

To include only records where a specific column meets a condition (correct)

To write the filtered data to an output directory

To view the results of the data processing

Which statement in Pig is used to write filtered data to an output directory?

STORE (correct)

DUMP

FILTER

LOAD

What does the LOAD statement do in Pig?

Loads data from HDFS Signup and view all the answers

What role does the DUMP statement play in Pig?

Views the results of the processing Signup and view all the answers

How does Pig differ from SQL in terms of processing statements?

Pig uses LOAD, TRANSFORM, and DUMP statements; SQL uses SELECT and FROM statements Signup and view all the answers

What does the AVG function do in Pig?

Calculates the average of a numeric column Signup and view all the answers

In Pig, how is data grouped before performing aggregation operations?

By using the GROUP operation Signup and view all the answers

What does the JOIN operation in Pig do?

Performs an inner join between datasets Signup and view all the answers

What does HiveQL in Hive stand for?

Hive Query Language Signup and view all the answers

Which component of Hive is responsible for querying and analyzing large datasets?

Hive Signup and view all the answers

In Hive, what determines the mode in which it operates?

Number of data nodes and size of data Signup and view all the answers