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 JobTracker in Hadoop? What are the actions followed by Hadoop?

769

Is it possible to split 100 lines of input as a single split in MapReduce?

964

What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?

876

Is it possible to rename the output file?

791

how JobTracker schedules a task ?

850

what is NameNode in Hadoop?

878

what does the conf.setMapper Class do ?

815

how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?

782

What is SequenceFileInputFormat?

817

What is a "map" in Hadoop?

794

What is a "reducer" in Hadoop?

870

what is Speculative Execution?

832

Explain JobConf in MapReduce.

810

What is OutputCommitter?

809

How is reporting controlled in hadoop?

782

Un-Answered Questions { Big Data }

How do you parse data in xml? Which kind of class do you use with java to parse data?

338

Does mapreduce programming model provide a way for reducers to communicate with each other? In a mapreduce job can a reducer communicate with another reducer?

677

What is the default spark executor memory?

281

How many daemon processes run on a hadoop cluster?

457

What is aws spark?

273

Apache Flume support third-party plugins also?

What are the cases where Apache Spark surpasses Hadoop?

283

What is kafka logs?

572

What is data ingestion pipeline?

321

How can I speed up my spark?

277

How to enable trash/recycle bin in hadoop?

738

How will you implement joins in HBase?

176

Can you explain spark core?

264

What is the use of cloudera?

448

How to invoke Command Line Interface?

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