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?

1036

Does hadoop always require digital data to process?

1220

what is meaning Replication factor?

999

What is the purpose of RawComparator interface?

1175

Where is the Mapper Output stored?

1414

What is the function of ApplicationMaster?

1017

What problems can be addressed by using Zookeeper?

983

Can there be no Reducer?

882

What is Hadoop streaming?

1085

Is client the end user in HDFS?

1013

Can the balancer be run while Hadoop is in use?

1020

Explain the difference between NameNode

976

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

1055

Explain about Hive Buckets with Example ?

2 2684

What other technologies have you used in hadoop sta ck?

1020

Un-Answered Questions { Big Data }

What is the difference between Cassandra, Pig and Hive?

1049

What is the difference between Pig and MapReduce?

657

What is Resilient Distributed Dataset (RDD) in Apache Spark? How does it make spark operator rich?

304

What is difference between Column and Super Column?

How can you send some messages in kafka?

549

Explain about the replication and multiplexing selectors in Flume?

100

What is the difference between Internal Table and External Table in Hive?

766

Mention what is the difference between hdfs and nas?

What do you mean by commit log in Cassandra?

What are common uses of Apache Spark?

311

Explain about the popular use cases of Apache Spark

436

Can you define rdd lineage?

296

What are the all tasks we can perform for managing services using the ambari service tab?

How can we create rdds in apache spark?

325

What are file permissions in HDFS? how does HDFS check permissions for files/directory?

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