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Big Data Interview Questions
Questions Answers Views Company eMail

What are the basic available commands in Hadoop sqoop ?

 666

On What concept the Hadoop framework works?

 882

How to write a Custom Key Class?

 634

What if rack 2 and datanode fails?

 790

How client application interacts with the NameNode?

 664

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

 672

How the HDFS Blocks are replicated?

 640

Explain InputFormat?

 665

What is Rack awareness?

 679

How will format the HDFS ?

 631

what are the steps involved in commissioning adding

 623

How to use Apache Zookeeper command line interface?

 703

Can NameNode and DataNode be a commodity hardware?

 1392

What are the steps to submit a Hadoop job?

 604

What is the heartbeat used for?

 669

Un-Answered Questions { Big Data }

Why spark is used?

195

How we can check hadoop sqoop installed or not in a system?

5

Explain Spark coalesce() operation?

186

What is Apache Spark?

199

What are the key features of HDFS?

26




how can you debug Hadoop code?

514

What are distinct operators in impala?

36

What is spark sqlcontext?

206

Can we write map reduce program in other than java programming language. How?

296

What is a scarce system resource?

385

What is a dataset? What are its advantages over dataframe and rdd?

210

What is Apache Hadoop?

516

How is fault tolerance achieved in Apache Spark?

211

How client application interacts with the NameNode?

664

How does lazy evaluation work in spark?

193

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