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?

<p>Grouping data by a specified column (D)</p> Signup and view all the answers

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

<p>HiveQL (B)</p> Signup and view all the answers

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

<p>Two modes (C)</p> Signup and view all the answers

What is the purpose of a LOAD statement in Pig?

<p>To read data from the system (C)</p> Signup and view all the answers

How is data separated in the LOAD statement in Pig?

<p>Comma separated (B)</p> Signup and view all the answers

What does the FILTER statement do in Pig?

<p>Filters data based on a condition (D)</p> Signup and view all the answers

In Pig, what does the STORE statement do?

<p>Writes data to a specified directory (C)</p> Signup and view all the answers

What are some tasks performed by Developers in Pig?

<p>Loading and filtering data (A)</p> Signup and view all the answers

How does Pig process Pig Latin statements?

<p>By interpreting LOAD, TRANSFORM, DUMP, or STORE statements (C)</p> Signup and view all the answers

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