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Big Data Interview Questions
Questions Answers Views Company eMail

What are the basic available commands in Hadoop sqoop ?

964

On What concept the Hadoop framework works?

1200

How to write a Custom Key Class?

938

What if rack 2 and datanode fails?

1060

How client application interacts with the NameNode?

956

How is the option in Hadoop to skip the bad records?

949

How the HDFS Blocks are replicated?

962

Explain InputFormat?

1011

What is Rack awareness?

998

How will format the HDFS ?

1061

what are the steps involved in commissioning adding

909

How to use Apache Zookeeper command line interface?

1137

Can NameNode and DataNode be a commodity hardware?

1679

What are the steps to submit a Hadoop job?

906

What is the heartbeat used for?

1045


Un-Answered Questions { Big Data }

On What concept the Hadoop framework works?

1200


Give examples of some companies that are using Hadoop structure?

440


How does speculative execution work in Hadoop?

435


Why should I use spark?

303


Why do we need Hadoop Archives? How is it created?

563


What is aggregatebykey spark?

263


Is apache spark worth learning?

306


What advantages does Spark offer over Hadoop MapReduce?

297


Would you be able to change the block size of hdfs files?

45


What are common uses of Apache Spark?

295


What are producer-consumer queues?

1


What is the precedence order of hive configuration?

932


Can you do real-time processing with Spark SQL?

317


What are the various diagnostic operators available in Apache Pig?

735


Can you define parquet file?

274