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?

701

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

651

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

652

Clarify what is shuffling in map reduce?

695

What are the fundamental configurations parameters specified in map reduce?

680

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

661

What are the four essential parameters of a mapper?

708

What does rack awareness mean?

462

What the information segments utilized by hadoop are?

462

Clarify what a task tracker is in hadoop?

480

How ordering in hdfs is finished?

480

Un-Answered Questions { Big Data }

Explain Accumulator in Spark?

467

What is the roadmap for apache mahout version 1.0?

What are the main components of Cassandra data models?

119

Explain the term paired RDD in Apache Spark?

421

What is a map in pig?

609

What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?

714

What is the purpose of Sqoop List Tables?

List the various components in kafka?

572

What are basic steps to be performed while working with big data?

622

What is small file problem in hadoop?

833

How to change a column data type in Hive?

740

Hadoop sqoop is which type of tool?

Does hdfs enable a customer to peruse a record, which is already opened for writing?

Can you explain speculative execution?

457

Explain why the name ‘hadoop’?

753

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