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 the reason for creating a new metastore_db whenever Hive query is run from a different directory?

988

Does hadoop always require digital data to process?

1181

what is meaning Replication factor?

951

What is the purpose of RawComparator interface?

1128

Where is the Mapper Output stored?

1374

What is the function of ApplicationMaster?

966

What problems can be addressed by using Zookeeper?

941

Can there be no Reducer?

840

What is Hadoop streaming?

1046

Is client the end user in HDFS?

978

Can the balancer be run while Hadoop is in use?

975

Explain the difference between NameNode

941

What is the utility of using Writable Comparable Custom Class in Map Reduce code?

989

Explain about Hive Buckets with Example ?

2 2572

What other technologies have you used in hadoop sta ck?

984

Un-Answered Questions { Big Data }

Why do people use spark?

274

What are the core components of Hadoop?

508

What is Clustring in Hive?

741

How can you control the number of mappers used by the sqoop command?

Why we need compression and what are the different compression format supported?

282

What is Directed Acyclic Graph(DAG)?

309

Can you modify the file present in hdfs?

What is illustrate used for in apache pig?

594

How does hdfs ensure information integrity of data blocks squares kept in hdfs?

What is a rack?

419

What is a record reader?

407

Explain HCatLoader and HCatStorer APIs?

What is Sqoop Import? Explain its purpose?

Which command do we use to show the version?

160

What is the use of context object?

466

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