EDUCBA

EDUCBA

MENUMENU
  • Free Tutorials
  • Free Courses
  • Certification Courses
  • 600+ Courses All in One Bundle
  • Login
Home Software Development Software Development Tutorials Top Interview Question Apache PIG Interview Questions
Secondary Sidebar
Top Interview Question Tutorial
  • Interview Questions
    • Apache PIG Interview Questions
    • Elasticsearch Interview Questions
    • Data Engineer Interview Questions
    • Algorithm Interview Questions
    • OBIEE Interview Question
    • SSIS Interview Questions
    • Cognos Interview Questions
    • MapReduce Interview Questions
    • NoSQL Interview Questions
    • SharePoint Interview Questions
    • Sqoop Interview Questions
    • Business Intelligence Interview Questions
    • Mainframe Interview Questions
    • Rail Interview Questions
    • SSRS Interview Questions
    • Data Modeling Interview Questions
    • J2EE Interview Questions
    • Minitab Interview Questions
    • Statistics Interview Questions
    • MS SQL Interview Questions
    • Ab Initio Interview Questions
    • Spark Interview Questions
    • WordPress Interview Questions
    • OS Interview Questions
    • Drupal Interview Questions
    • OOP Interview Questions
    • Mulesoft Interview Questions
    • Typescript Interview Questions
    • Redux Interview Questions
    • Pig Interview Questions
    • ES6 Interview Questions
    • Multithreading Interview Questions
    • Go Interview Questions
    • APEX Interview Questions
    • Teradata Interview Questions
    • Groovy Interview Questions
    • ExtJS Interview Questions
    • E-Commerce Interview Questions
    • Appium Interview Questions
    • SOA Interview Questions
    • ITIL Interview Questions
    • Digital Electronics Interview Questions
    • IT Interview Questions
    • WinForms Interview Questions
    • IT Security Interview Questions
    • WCF Interview Questions
    • Microprocessor Interview Questions
    • Apache Interview Questions
    • MicroStrategy Interview Questions
    • Virtualization Interview Questions
    • UI Developer Interview Questions
    • Electrical Engineering Interview Questions
    • RMAN Interview Questions
    • SVN Interview Questions
    • Talend interview questions
    • SAP ABAP Interview Questions
    • Inheritance Interview Questions
    • Threading Interview Questions
    • Quality Control Interview Questions
    • Embedded System Interview Questions
    • OpenStack Interview Questions
    • Objective C Interview Questions
    • QA Interview Question
    • PLC Interview Questions
    • SDET Interview Questions
    • JCL Interview Questions
    • SOAP Interview Questions
    • IELTS Interview Questions
    • SoapUI Interview Questions
    • Front end Developer Interview Questions
    • DB2 Interview Questions
    • VSAM Interview Question
    • MVC Interview Questions
    • WPF Interview Questions
    • Java Collections Interview Questions
    • UI Designer Interview Questions
    • NLP Interview Questions
    • TFS Interview Questions
    • Active Directory Interview Questions
    • Xamarin Interview Questions
    • Intrusion Prevention System Interview Questions
    • COBOL Interview Questions
    • Control System Interview Questions
    • Blue Prism Interview Questions
    • Scenario Interview Questions
    • Unit testing interview questions
    • Linked List Interview Questions
    • Mainframe testing interview questions
    • Selenium Interview Questions
    • Binary Tree Interview Questions
    • Cloud Security Interview Questions
    • Functional Testing Interview Questions
    • Civil Engineering Questions for Interview
    • DHCP interview questions
    • Spring Batch Interview Questions
    • Perl interview questions
    • ESL interview questions
    • OBIEE Interview Questions
    • DynamoDB interview questions
    • Automation Anywhere Interview Questions
    • Scrum Interview Questions
    • Security Testing Interview Questions
    • Struts Interview Questions
    • Databricks Interview Questions
    • Electronics Engineering Interview Questions
    • Java concurrency interview questions
    • RxJava Interview Questions
    • ServiceNow Interview Question
    • XML Interview Questions
    • Entity Framework Interview Questions
    • Terraform Interview Questions
    • LINQ Interview Questions
    • MVVM Interview Questions
    • OSPF Interview Questions
    • Server interview questions
    • Appdynamics Interview Questions
    • Webpack Interview Questions
    • Data Architect Interview Questions
    • GitHub Interview Questions
    • Data Analyst Technical Interview Questions
    • GitHub JavaScript Interview Questions
    • Bitbucket Interview Questions
    • OOPs Java Interview Questions
    • DNS Interview Question
    • MPLS Interview Questions
    • Django Interview Question

Related Courses

Programming Languages Course

C programming Course

Selenium Training Certification

Apache PIG Interview Questions

By Priya PedamkarPriya Pedamkar

Apache PIG Interview Questions

Introduction to Apache PIG Interview Questions and Answers

So you have finally found your dream job in Apache PIG, but we are wondering how to crack the 2023 Apache PIG interview and what could be the probable Apache PIG interview questions. Every Apache PIG interview is different, and the scope of a job is different too. Keeping this in mind, we have designed the most common Apache PIG interview questions and answers to help you get success in your Apache PIG interview.

The following is the list of 2023 Apache PIG Interview questions that are asked mostly asked.

Part 1 – Apache PIG Interview Questions (Basic)

1. What are the key differences between MapReduce and Apache Pig?

Answer:
Following are the key differences between Apache Pig and MapReduce due to which Apache Pig came into the picture:

  • MapReduce is a low-level data processing model, whereas Apache Pig is a high-level data flow platform.
  • Without writing the complex Java implementations in MapReduce, programmers can achieve the same implementations easily using Pig Latin.
  • Apache Pig provides nested data types like bags, tuples, and maps as they are missing from MapReduce.
  • Pig supports the data operations like filters, joins, ordering, sorting, etc., with many built-in operators. Whereas to perform the same function in MapReduce is an immense task.

2. Explain the uses of MapReduce in Pig

Answer:
Apache Pig programs are written in a query language known as Pig Latin, which is similar to the SQL query language. To execute a query, there is a need for an execution engine. And the Pig engine converts the queries into MapReduce jobs, and thus MapReduce acts as the execution engine and is needed to run the programs.

Start Your Free Software Development Course

Web development, programming languages, Software testing & others

3. Explain the uses of Pig

Answer:
We can use the Pig in three categories, they are:

  • ETL data pipeline: It helps to populate our data warehouse. A pig can pipeline the data to an external application; it will wait until it’s finished to receive the processed data and continue from there. It is the most common use case for Pig.
  • Research on raw data.
  • Iterative processing.

4. Compare Apache Pig and SQL

Answer:

  • Apache Pig differs from SQL in its usage for ETL, lazy evaluation, store data at any given point in time in the pipeline, support for pipeline splits and explicit declaration of execution plans. SQL (Structural query language) is oriented around queries that produce a single result. SQL has no inbuilt mechanism for splitting the data processing stream and applying different operators to each sub-stream.
  • Apache Pig allows user code to be included at any point in the pipeline, whereas if SQL, where to be used data, needs to be imported to the database first, and then the process of cleaning and transformation begins.

Part 2 – Apache PIG Interview Questions (Advanced)

5. Explain the different complex data types in Pig

Answer:
Apache Pig supports three complex data types-

  • Maps: These are key, value stores joined together using #.
    Example: [‘city’#’Pune’,’pin’#411045]
  • Tuples: Just similar to the row in a table, where a comma separates different items. Tuples can have multiple attributes.
  • Bags: An unordered collection of tuples. The Bag allows multiple duplicate tuples.
    Example: {(‘Mumbai’,022),(‘New Delhi’,011),(‘Kolkata’,44)}

6. Explain different Execution models available in Pig

Answer:
Three different execution modes available in Pig they are,

  • Interactive mode or Grunt mode.
    Interactive mode or grunt mode: Pig’s interactive shell is known as a grunt shell. If no file is specified to run in Pig, it will start.
  • Batch mode or Script mode.
    Pig executes the specified commands in the script file.
  • Embedded mode
    We can embed Pig programs in Java, and we can run the programs from Java.

7. Explain about the execution plans (Logical & Physical plan) of a Pig Script

Answer:
Logical and Physical plans are created during the execution of a pig script. Pig scripts are based on interpreter checking. The Logical plan is produced by semantic checking and basic parsing, and no data processing occurs during the creation of a logical plan. For each line in the Pig script, the syntax check is performed for operators and a logical plan is created. Whenever an error is encountered within the script, an exception is thrown, and the program execution ends, else for each statement in the script has its own logical plan.

A logical plan contains the operators’ collection in the script but does not contain the edges between the operators.
After the logical plan is generated, the script execution moves to the physical plan, where there is a description of the physical operator’s Apache Pig will use to execute the Pig script. A physical plan is more or less like a series of MapReduce jobs, but then the plan does not reference how it will be executed in MapReduce. A cogroup logical operator is converted into 3 physical operators during the creation of a physical plan, namely –Local Rearrange, Global Rearrange, and Package. Load and store functions usually get resolved in the physical plan.

All in One Software Development Bundle(600+ Courses, 50+ projects)
Python TutorialC SharpJavaJavaScript
C Plus PlusSoftware TestingSQLKali Linux
Price
View Courses
600+ Online Courses | 50+ projects | 3000+ Hours | Verifiable Certificates | Lifetime Access
4.6 (86,697 ratings)

8. What are the debugging tools used for Apache Pig scripts?

Answer:
Describe and explain are the important debugging utilities in Apache Pig.

  • Explain utility is helpful for Hadoop developers when trying to debug error or optimize PigLatin scripts. Explain can be applied to a particular alias in the script or applied to the entire script in the grunt interactive shell. Explain utility produces several graphs in text format, which can be printed to a file.
  • Describe debugging utility is helpful to developers when writing Pig scripts as it shows the schema of a relation in the script. For beginners who are trying to learn Apache Pig can use the describe utility to understand how each operator makes alterations to data. A pig script can have multiple describes.

9. What are some of the Apache Pig use cases you can think of?

Answer:

  • Apache Pig big data tool is used particularly for iterative processing, research on raw data, and traditional ETL data pipelines. As Pig can operate in circumstances where the schema is not known, inconsistent or incomplete- it is widely used by researchers who want to make use of the data before it is cleaned and loaded into the data warehouse.
  • For instance, to build behaviour prediction models, it can be used by a website to track the visitors’ response to various types of ads, images, articles, etc.

10. Highlight the difference between group and Cogroup operators in Pig.

Answer:
Both operators can work with one or more relations. Group and Cogroup operators are identical. The Group operator collects all records with the same key. Cogroup is a combination of group and join; it is a generalization of a group instead of collecting records of one input depends on a key; it collects records of n inputs based on a key. At a time, we can Cogroup up to 127 relations.

Recommended Articles

This has been a guide to the List Of Apache PIG Interview questions and answers so that the candidate can crackdown these Apache PIG Interview questions easily.  This article consists of all useful Apache PIG Interview questions and answers to help you in an interview. You may also look at the following articles to learn more –

  1. Informatica Scenario Based Interview
  2. Blue Prism Interview Questions
  3. Control System Interview Questions
  4. React Native Interview Questions
Popular Course in this category
Apache Pig Training (2 Courses, 4+ Projects)
  2 Online Courses |  4 Hands-on Projects |  18+ Hours |  Verifiable Certificate of Completion
4.5
Price

View Course

Related Courses

Programming Languages Training (41 Courses, 13+ Projects, 4 Quizzes)4.9
C Programming Training (3 Courses, 5 Project)4.8
Selenium Automation Testing Training (11 Courses, 4+ Projects, 4 Quizzes)4.7
5 Shares
Share
Tweet
Share
Primary Sidebar
Footer
About Us
  • Blog
  • Who is EDUCBA?
  • Sign Up
  • Live Classes
  • Corporate Training
  • Certificate from Top Institutions
  • Contact Us
  • Verifiable Certificate
  • Reviews
  • Terms and Conditions
  • Privacy Policy
  •  
Apps
  • iPhone & iPad
  • Android
Resources
  • Free Courses
  • Java Tutorials
  • Python Tutorials
  • All Tutorials
Certification Courses
  • All Courses
  • Software Development Course - All in One Bundle
  • Become a Python Developer
  • Java Course
  • Become a Selenium Automation Tester
  • Become an IoT Developer
  • ASP.NET Course
  • VB.NET Course
  • PHP Course

ISO 10004:2018 & ISO 9001:2015 Certified

© 2022 - EDUCBA. ALL RIGHTS RESERVED. THE CERTIFICATION NAMES ARE THE TRADEMARKS OF THEIR RESPECTIVE OWNERS.

EDUCBA
Free Software Development Course

C# Programming, Conditional Constructs, Loops, Arrays, OOPS Concept

*Please provide your correct email id. Login details for this Free course will be emailed to you

By signing up, you agree to our Terms of Use and Privacy Policy.

EDUCBA Login

Forgot Password?

By signing up, you agree to our Terms of Use and Privacy Policy.

EDUCBA
Free Software Development Course

Web development, programming languages, Software testing & others

*Please provide your correct email id. Login details for this Free course will be emailed to you

By signing up, you agree to our Terms of Use and Privacy Policy.

EDUCBA

*Please provide your correct email id. Login details for this Free course will be emailed to you

By signing up, you agree to our Terms of Use and Privacy Policy.

Let’s Get Started

By signing up, you agree to our Terms of Use and Privacy Policy.

This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to our Privacy Policy

Loading . . .
Quiz
Question:

Answer:

Quiz Result
Total QuestionsCorrect AnswersWrong AnswersPercentage

Explore 1000+ varieties of Mock tests View more