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

Big Data Interview Questions

Questions Answers Views Company eMail

Can we change the document present in hdfs?

What does rack awareness algorithm means and why is it utilized as a part of hadoop?

488

What does rack awareness algorithm means?

537

What does the high availability of a name-node means? How is it accomplished?

454

What does name-node mean in hadoop?

515

What is check pointing in hadoop?

480

What does secondary name-node means?

487

What type of data hadoop can handle ?

477

What does the high availability of a name-node means?

482

What does block mean?

487

What do you think about the speculative execution?

486

What did mean by data-node?

484

How to use combiner in hadoop ?

487

List few benefits of spark over map reduce?

316

Can you define rdd?

323

Un-Answered Questions { Big Data }

What is the use of having Filters in Apache Pig ?

742

Who developed Apache Avro?

When should you use spark cache?

307

Is avro supported?

What are the machine learning algorithms supports in apache mahout?

115

Is hadoop still in demand?

502

What is cluster manager in spark?

331

Is it possible to rename the output file, and if so, how?

512

Explain JobConf in MapReduce.

858

What is the problem with small files in Hadoop?

576

Name commonly-used Spark Ecosystems

329

How do you specify the table creator name when creating a table in hive?

728

What is RDD in Apache Spark? How are they computed in Spark? what are the various ways in which it can create?

340

What is HBase?

367

What is Schema on Read and Schema on Write?

956

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