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

Big Data Interview Questions

Questions Answers Views Company eMail

Why was spark created?

1 290

Are sparks dangerous?

1 360

What are spark stages?

1 320

How do I get better performance with spark?

1 311

When was spark introduced?

1 354

What exactly is spark?

1 289

What is spark repartition?

1 333

What is spark etl?

1 316

Does spark replace hadoop?

1 299

Is cache an action in spark?

1 320

Why is spark so fast?

1 295

Is apache spark a database?

1 335

Do I need to learn scala for spark?

1 333

Is spark based on hadoop?

1 331

What is amazon spark?

1 288

Un-Answered Questions { Big Data }

What is meant by Transformation? Give some examples.

328

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?

872

What are the different types of tables available in Hive?

745

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

854

What is the function of UNION and SPLIT operators? Give examples?

578

What is the latest version of ambari that is available in the present market?

Explain how RDDs work with Scala in Spark

355

How job tracker schedules an assignment?

473

List the advantage of Parquet file in Apache Spark?

474

How can you import only a subset of rows from a table?

When we are using queries instead of scripting?

778

Give me the examples of Columnar database ?

641

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

1059

How can you set an arbitrary number of Reducers to be created for a job in Hadoop?

518

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