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

Big Data Interview Questions

Questions Answers Views Company eMail

Elucidate the concept of cap theorem?

What is the procedure of data storage in cassandra?

What do you understand by the term snitch in cassandra? Give some example.

Is it possible to add or delete column families in a working group?

What is mapper in map reduce?

641

What happens if the quantity of the reducer is 0 in mapreduce?

594

Clarify what combiners are and when you should utilize a combiner in a map reduce job?

593

Clarify what is shuffling in map reduce?

634

What are the fundamental configurations parameters specified in map reduce?

635

What combiners are and when you should utilize a combiner in a map reduce job?

604

What are the four essential parameters of a mapper?

653

What does rack awareness mean?

411

What the information segments utilized by hadoop are?

417

Clarify what a task tracker is in hadoop?

427

How ordering in hdfs is finished?

424

Un-Answered Questions { Big Data }

What is Slot in Hadoop v1? Why was it removed from Hadoop v2?

515

Is hbase an os independent approach?

189

Can you explain how it is different from doing machine learning in r or sas?

What is row rdd in spark?

287

How can you debug a pig script?

595

Is the keyword ‘FUNCTIONAL’ a User Defined Function (UDF)?

549

What is formatting of the dfs?

828

Why do fires spark?

299

What is the function of Cluster.Builder class in Cassandra?

139

Explain join() operation in Apache Spark?

354

What are the four features of Big Data?

585

What are znodes?

What happens if the block in HDFS is corrupted?

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

649

What are different types of filesystem?

1142

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