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?

834

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

1021

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

939

Is it possible to rename the output file?

845

how JobTracker schedules a task ?

917

what is NameNode in Hadoop?

948

what does the conf.setMapper Class do ?

875

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

831

What is SequenceFileInputFormat?

874

What is a "map" in Hadoop?

843

What is a "reducer" in Hadoop?

924

what is Speculative Execution?

906

Explain JobConf in MapReduce.

862

What is OutputCommitter?

873

How is reporting controlled in hadoop?

841

Un-Answered Questions { Big Data }

What is safe mode in Hadoop?

1018

Define SSTable?

What is Hive Present Version ?

1136

What is cages?

How is hadoop different from other data processing tools?

715

Clarify SSTable?

357

Mention what is distributed cache in hadoop?

482

What are different modes of execution in Apache Pig?

923

How do you specify the table creator name when creating a table in hive?

732

When should we use SORT BY instead of ORDER BY?

754

When should you use spark cache?

307

Does Pig support multi-line commands?

941

What are common uses of Apache Spark?

311

Explain Sort Order in brief?

164

What are the actions followed by hadoop?

516

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