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 are the features of Fully-Distributed mode?

562

What are configuration files in Hadoop?

574

What are the limitations of Hadoop?

633

Compare Hadoop 2 and Hadoop 3?

479

Explain Data Locality in Hadoop?

594

What is the problem with small files in Hadoop?

581

How is security achieved in Hadoop?

573

Why does one remove or add nodes in a Hadoop cluster frequently?

750

What is throughput in Hadoop?

589

How to restart NameNode or all the daemons in Hadoop?

597

What does jps command do in Hadoop?

717

What is fsck?

702

How to debug Hadoop code?

578

Explain Hadoop streaming?

520

What does hadoop-metrics.properties file do?

588

Un-Answered Questions { Big Data }

What do slaves consist of?

722

What are the challenges Of Distributed Applications?

Where are hadoop’s configuration files located and list them?

490

List the files associated with metadata in hdfs?

Different ways of debugging a job in MapReduce?

1164

What are the Optimizations a developer can use during joins?

575

When should be hadoop archive create?

475

Hdfs stores data using commodity hardware which has higher chances of failures. So, how hdfs ensures the fault tolerance capability of the system?

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

514

Explain MemStore?

182

What is inputformat in hadoop?

803

What is the procedure for namenode recovery?

501

Mention what is the next step after mapper or maptask?

704

How would you tackle counting words in several text documents?

1069

What is node in Cassandra?

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