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

Big Data Interview Questions

Questions Answers Views Company eMail

Can you define udf?

1 496

What is the difference between an inputsplit and a block?

1 702

What is the purpose of context object?

1 478

Can you explain sequence file in hadoop?

1 484

What is the use of recordreader in hadoop?

1 477

What is data cleansing?

1 517

What is the number of default partitioner in hadoop?

1 502

Can you explain hadoop streaming?

1 475

List out some common problems faced by data analyst?

1 506

What is job tracker role in hadoop?

1 542

What do you understand by a closure in scala?

1 546

Can you explain textinformat?

1 563

List some use cases where classification machine learning algorithms can be used.

1 520

How many daemon processes run on a hadoop cluster?

1 520

Which scala library is used for functional programming?

1 513

Un-Answered Questions { Big Data }

What is the latest version of sqoop?

Where does the data of a Hive table gets stored?

727

Can free-form SQL queries be used with Sqoop import command? If yes, then how can they be used?

How to skip header rows from a table in Hive?

875

How you can contact your client everyday ?

1018

Can We Change settings within Hive Session? If Yes, How?

840

What is a Hive variable? What for we use it?

858

What is the latest version of spark?

310

List the advantage of Parquet file in Apache Spark?

492

When to choose "External Table" in Hive?

851

What is meant by Transformation? Give some examples.

350

How job tracker schedules an assignment?

478

Give me the examples of Columnar database ?

646

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1059

How do I set up flume agent?

104

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