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 relation between job and task in hadoop?

664

What do you know by storage and compute node?

689

What is the purpose of button groups?

751

Name the various types of lists supported by bootstrap.

678

How many instances of a jobtracker run on hadoop cluster?

641

How do you categorize a big data?

776

What is inputsplit in hadoop? Explain.

790

What platform and java version are required to run hadoop?

694

What is the functionality of jobtracker in hadoop?

718

What are the hadoop's three configuration files?

696

What is map/reduce job in hadoop?

642

What is the difference between input split and hdfs block?

Mention some important features of spm in cassandra?

113

What is the use of cassandra cql collection?

Mention some important components of cassandra data models?

Un-Answered Questions { Big Data }

What do you mean by data locality?

673

What is Block in HDFS?

Why do the nodes are removed and added frequently in a hadoop cluster?

475

Why ‘Reading‘ is done in parallel and ‘Writing‘ is not in HDFS?

Explain InputSplit in Hadoop MapReduce?

674

While reading data from hbase, from which three places data will be reconciled before returning the value?

198

Who uses Cassandra?

What is the difference between structured and unstructured big data?

524

What are the optimization techniques in spark?

282

Why is Cassandra popular? Clarify.

List out some key features of apache cassandra?

What is apache spark and what is it used for?

328

Why hive does not store metadata information in hdfs?

939

Explain the difference between a MapReduce InputSplit and HDFS block?

657

How does a client read/write data in HDFS?

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