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Understanding How Pig Works in Data Processing

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Understanding How Pig Works in Data Processing

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Questions and Answers

What function is used to calculate the average salary for each department in the Pig script?

COUNT

SUM

AVG (correct)

MAX

In the Pig script, what is the field delimiter used when loading data from HDFS?

Tab

Space

Comma (,) (correct)

Pipe (|)

What operation does 'FOREACH...GENERATE' perform in Pig?

Transformation (correct)

Filtering

Sorting

Grouping

What is the purpose of the 'GROUP' operation in Pig?

Grouping data by a specified column Signup and view all the answers

In Hive, what query language is used for querying datasets stored in HDFS?

HiveQL Signup and view all the answers

How many modes does Hive operate in based on the number and size of data nodes?

Two modes Signup and view all the answers

What is the purpose of a LOAD statement in Pig?

To read data from the system Signup and view all the answers

How is data separated in the LOAD statement in Pig?

Comma separated Signup and view all the answers

What does the FILTER statement do in Pig?

Filters data based on a condition Signup and view all the answers

In Pig, what does the STORE statement do?

Writes data to a specified directory Signup and view all the answers

What are some tasks performed by Developers in Pig?

Loading and filtering data Signup and view all the answers

How does Pig process Pig Latin statements?

By interpreting LOAD, TRANSFORM, DUMP, or STORE statements Signup and view all the answers