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 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?

What are common uses of Apache Spark?

295

What are producer-consumer queues?

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

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