Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

Name job control options specified by mapreduce.

766

What is heartbeat in hdfs?

714

What is difference between an input split and hdfs block?

712

How do reducers communicate with each other?

738

How does inputsplit in mapreduce determines the record boundaries correctly?

695

How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?

732

What main configuration parameters are specified in mapreduce?

727

How do you stop a running job gracefully?

661

Is it necessary to write a mapreduce job in java?

673

What is shuffling and sorting in mapreduce?

700

What is the function of mapreducer partitioner?

687

What is partitioner and its usage?

758

What are the important differences between apache and hadoop?

745

Is there any point of learning mapreduce, then?

701

While processing data from hdfs, does it execute code near data?

Un-Answered Questions { Big Data }

What is the most widely recognized info formats characterized in hadoop?

492

How you can use Akka with Spark?

384

What is the benifit of Distributed cache, why can we just have the file in HDFS and have the application read it?

How is a keyspace created in cassandra?

133

What are the various modes in which Spark runs on YARN? (Local vs Client vs Cluster Mode)

289

Explain the term 'Topic Replication Factor'?

572

What is NameNode and DataNode in HDFS?

What are the various libraries available on top of Apache Spark?

326

Is apache spark a programming language?

324

Can we submit the mapreduce job from slave node?

1177

What are the different parts of Hive ?

828

What is the difference between hadoop and other data processing tools?

737

What are the various uses of explode hive?

733

Discuss about the different tombstone markers used for deletion purposes in HBase.?

193

Can you explain ingestion in big data?

611

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