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

Big Data Interview Questions

Questions Answers Views Company eMail

List the functions of Spark SQL?

481

What is RDD?

483

How to create RDD?

497

Does Apache Spark provide check pointing?

402

Explain about the popular use cases of Apache Spark

426

Do you need to install Spark on all nodes of Yarn cluster while running Spark on Yarn?

649

What are the different String functions available in pig?

815

Differentiate between the physical plan and logical plan in Pig script?

770

What are the use cases of Apache Pig?

798

What do you understand by an inner bag and outer bag in Pig?

851

Explain different execution modes available in Pig?

779

How do users interact with HDFS in Apache Pig ?

754

what are the basic parameters of a Mapper?

812

What is a MapReduce Combiner?

794

Where is Mapper output stored?

853

Un-Answered Questions { Big Data }

State some highlights of Ambari?

What are the characteristics of hadoop framework?

668

What is SSTable?

Apache Flume support third-party plugins also?

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

What are some of the interesting facts about Big Data?

631

What is kerberos secured cluster in apache pig?

701

What is lazy evaluation in Spark?

317

What is the use of explode in Hive?

728

What are channel selectors?

1029

Is it possible to change the default location of a managed table?

729

Explain how is hadoop different from other data processing tools?

729

Explain first() operation in Apache Spark RDD?

367

What do you understand by composite type?

If I create a folder in HDFS, will there be metadata created corresponding to the folder? If yes, what will be the size of metadata created for a directory?

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