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 is Apache Spark and what are the benefits of Spark over MapReduce?

1 300

What are the cases where Apache Spark surpasses Hadoop?

1 301

What is the bottom layer of abstraction in the Spark Streaming API ?

1 815

Which the fundamental data structure of Spark

1 332

List the advantage of Parquet file in Apache Spark?

474

What does map transformation do? Provide an example.

1 334

What are the different ways of representing data in Spark?

1 289

What are the features of Spark?

1 309

What are shared variables in Apache Spark?

1 343

What are the various libraries available on top of Apache Spark?

1 328

Explain the operations of Apache Spark RDD?

1 304

What are the limitations of Apache Spark?

1 297

State the difference between persist() and cache() functions.

1 337

What is Directed Acyclic Graph(DAG)?

1 331

What are Actions? Give some examples.

1 332

Un-Answered Questions { Big Data }

What are the different types of tables available in Hive?

745

What is the roadmap for apache mahout version 1.0?

What is the latest version of spark?

288

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

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

What is meant by Transformation? Give some examples.

328

Which modes can Hadoop be run in? List a few features for each mode?

517

How can I delete the above index named index_bonuspay?

777

What is the latest version of sqoop?

How job tracker schedules an assignment?

472

List the advantage of Parquet file in Apache Spark?

474

Give me the examples of Columnar database ?

641

When to choose "External Table" in Hive?

847

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

518

How do I set up flume agent?

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