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

Big Data Interview Questions

Questions Answers Views Company eMail

how can you identify whether a given operation is transformation or action?

283

Explain the use of broadcast variables

340

How do you parse data in xml? Which kind of class do you use with java to pass data?

323

Explain sortbykey() operation?

305

List various commonly used machine learning algorithm?

394

What are the ways in which one can know that the given operation is transformation or action?

294

Describe join() operation. How is outer join supported?

306

What is the method to create a data frame?

329

On what all basis can you differentiate rdd, dataframe, and dataset?

327

How can you manually partition the rdd?

316

How to create an rdd?

310

What is an rdd?

324

Explain the top() and takeordered() operation?

350

What are the major features/characteristics of rdd (resilient distributed datasets)?

321

What is the difference between map and flatmap?

326

Un-Answered Questions { Big Data }

Explain bagtotuple?

635

What is Clustring in Hive?

782

Connection between hadoop and big data?

598

In a given spark program, how will you identify whether a given operation is Transformation or Action ?

361

What is ObjectInspector functionality?

876

What does a Spark Engine do?

339

What are the difference between of the “HDFS Block” and “Input Split”?

Explain about the different cluster managers in Apache Spark

353

Explain the term paired RDD in Apache Spark?

421

What is avro format?

What is lineage graph?

472

Can we run spark without hadoop?

308

How would you tackle counting words in several text documents?

1068

What is dataframe in spark?

302

What do you understand by Kundera?

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