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 the problem with the small file in Hadoop?

697

How many Reducers run for a MapReduce job?

757

How to specify more than one directory as input to the MapReduce Job?

753

How to set the number of mappers to be created in MapReduce?

698

What is the sequence of execution of Mapper, Combiner, and Partitioner in MapReduce?

898

What is Reducer in MapReduce?

783

How many Reducers run for a MapReduce job in Hadoop?

632

What is MapReduce in Hadoop?

700

Why Hadoop MapReduce?

715

Why can aggregation not be done in Mapper in MapReduce?

654

How to submit extra files(jars, static files) for MapReduce job during runtime?

734

How many numbers of reducers run in Map-Reduce Job?

655

What is MapReduce? What are the syntax you use to run a MapReduce program?

727

Explain slot in Hadoop Map-Reduce v1?

738

What happen if the number of the reducer is 0 in MapReduce?

700

Un-Answered Questions { Big Data }

What are the hadoop configuration files at present?

537

Explain what is hbase?

158

State benefits of Hadoop users by using Apache Ambari?

What is a metastore in hive?

748

What is difference between flume and kafka?

What do you understand by Filters in HBase?

147

How many partitions are created by default in Apache Spark RDD?

319

What is row rdd in spark?

308

What are the different life cycle commands in ambari?

What is apache spark written in?

289

How sparksql is different from hql and sql?

513

Define oozie?

574

What do sorting and shuffling do?

752

Mention what is the data storage component used by hadoop?

490

What are the side data distribution techniques?

534

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