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

Big Data Interview Questions

Questions Answers Views Company eMail

List some commonly used Machine Learning Algorithm Apache Spark?

1 371

What is the command to start and stop the Spark in an interactive shell?

1 407

List out the ways of creating RDD in Apache Spark?

1 373

What are the various advantages of DataFrame over RDD in Apache Spark?

1 405

What is flatmap in apache spark?

1 415

What is the standalone mode in spark cluster?

1 362

Explain apache spark streaming? How is the processing of streaming data achieved in apache spark?

1 395

In what ways sparksession different from sparkcontext?

1 426

Explain fold() operation in spark?

1 389

Define sparkcontext in apache spark?

1 409

List out the various advantages of dataframe over rdd in apache spark?

1 391

What is map in apache spark?

1 359

Write the command to start and stop the spark in an interactive shell?

1 355

Define various running modes of apache spark?

1 385

What are the ways to run spark over hadoop?

1 393

Un-Answered Questions { Big Data }

What is the latest version of sqoop?

When to use explode in Hive?

832

How to skip header rows from a table in Hive?

900

State some DDL Command with brief Description?

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

1074

When we are using queries instead of scripting?

797

How job tracker schedules an assignment?

496

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

547

What is the stable version of Hive ?

2694

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

620

What are the different types of tables available in Hive?

767

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?

Give me the examples of Columnar database ?

667

How can I delete the above index named index_bonuspay?

804

For More Un-Answered { Big Data } Questions Click Here