Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

What are the different pig data types?

788

Explain about the different complex data types in Pig?

708

What is a relation in Pig?

764

Explain the difference between COUNT_STAR and COUNT functions in Apache Pig?

822

How should 'store' keyword is useful in pig scripts?

682

What is the use of having Filters in Apache Pig ?

746

How to write 'foreach' statement for map datatype in pig scripts?

706

What are the basic steps to writing a UDF Function in Pig?

739

What are the various diagnostic operators available in Apache Pig?

775

What is a bag in Pig Latin?

901

What are the different Relational Operators available in pig language?

772

What are the different ways of executing Pig script?

851

Explain the LOAD keyword in Pig script?

674

What is a MapFile?

784

Name the scalar data type and complex data types in Pig?

710

Un-Answered Questions { Big Data }

Does spark sql use hive?

295

Where is rdd stored?

329

How do you deal with sparse data?

Which are the methods in the mapper interface?

692

Why do we need Hadoop Archives? How is it created?

616

What is the throughput? How does hdfs give great throughput?

What is difference between reducer and combiner?

625

What are the default read and write classes in Hive?

705

what do you mean by data processing?

544

Explain about the different cluster managers in Apache Spark

353

What is the default extension of the files produced from a sqoop import using the –compress parameter?

What are the various libraries available on top of Apache Spark?

326

What is Internal and External table in Hive?

764

What are the limitations of Spark?

304

Define hadoop archives? What is the command for archiving a group of files in hdfs.

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