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

Big Data Interview Questions

Questions Answers Views Company eMail

What advantages does Spark offer over Hadoop MapReduce?

1 319

Why is Spark RDD immutable?

1 386

What are the types of Apache Spark transformation?

1 309

What is Spark Core?

1 327

Why Apache Spark?

1 337

Explain transformation and action in RDD in Apache Spark?

1 311

How can we create RDD in Apache Spark?

1 318

What is SparkSession in Apache Spark?

1 310

What is the Difference SparkSession vs SparkContext in Apache Spark?

1 435

What are the abstractions of Apache Spark?

1 320

What is SparkContext in Apache Spark?

1 335

What are the components of Apache Spark Ecosystem?

1 417

Explain the RDD properties?

1 335

What does ‘jps’ command do?

1 735

Mention what is the use of Context Object?

1 761

Un-Answered Questions { Big Data }

How you can contact your client everyday ?

1013

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

836

When we are using queries instead of scripting?

778

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

518

Explain how RDDs work with Scala in Spark

355

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

578

State some DDL Command with brief Description?

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

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

When to choose "External Table" in Hive?

847

What is the roadmap for apache driver version one.0?

Where does the data of a Hive table gets stored?

718

What is meant by Transformation? Give some examples.

328

List the advantage of Parquet file in Apache Spark?

474

How job tracker schedules an assignment?

472

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