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 are the different types of Znodes?

1014

How many instances of JobTracker can run on a Hadoop Cluser?

1058

What's the best way to copy files between HDFS clusters?

1396

Can Apache Kafka be used without Zookeeper?

1089

What is Your Cluster size ?

1471

What is the default block size in hdfs?

1085

What are active and passive "NameNodes"?

1514

It can be possible that a Job has 0 reducers?

1019

What are combiners and its purpose?

978

On what basis Namenode will decide which datanode to write on?

1301

Can Hadoop be compared to NOSQL database like Cassandra?

964

What is a Secondary Namenode? Is it a substitute to the Namenode?

1071

what are relational operations in pig latin?

922

What is the difference between SQL and NoSQL?

1142

What are the additional benefits YARN brings in to Hadoop?

1014

Un-Answered Questions { Big Data }

What are the various configuration parameters required to run a mapreduce job?

722

How many layers of Hadoop components are supported by Apache Ambari and what are they?

Mention some use cases of apache mahout?

What is streaming in Hadoop?

473

What platform and java version are required to run hadoop?

738

What are Apache Spark, Flume, Lucene, Hama, HCatalog, Mahout, Drill, Crunch and Thrift?

683

How to use Hive using the command line and Beeline?

991

If the hadoop administrator needs to make a change, which configuration file does he need to change?

501

Explain what is a cluster in cassandra?

How to enable trash/recycle bin in hadoop?

778

Will various customers write into an hdfs record simultaneously?

What is Spark Core?

321

How is the splitting of file invoked in Hadoop ?

583

Can you explain spark core?

282

What is the difference between Hive CLI and Beeline?

896

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