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 needs to be taken care while adding a Column?

107

how Cassandra writes data?

117

how Cassandra writes changed data into commitlog?

what is Cassandra- CQL collections?

105

what is Bloom Filter is used for in Cassandra?

114

when you can use Alter keyspace?

122

what is SStable consist of?

How to exit the vi editor?

732

Does the hdfs client decide the input split or namenode?

666

Which files are used by the startup and shutdown commands?

720

What is cloudera and why it is used?

797

What is a spill factor with respect to the ram?

863

Can we have multiple entries in the master files?

694

On which port does ssh work?

737

Do we need to give a password, even if the key is added in ssh?

727

Un-Answered Questions { Big Data }

Is it possible to add a parameter while running a saved job?

Does Cassandra work on Windows?

Explain the key benefits of using storm for real time processing?

431

What is accumulator in spark?

489

What is kafka in hadoop?

509

Define the term ‘sparse vector.’

281

What is Flatten and what it do in PIG?

638

Explain what are the various types of Transformation on DStream?

280

What is a map side join?

685

Where does spark plug get power?

277

How often DataNode send heartbeat to NameNode in Hadoop?

536

How does data transfer happen from hdfs to hive?

148

Name and describe three different kernel functions and in what situation you would use each.

Name the types of tunable consistency?

Explain what is the function of mapreduce partitioner?

638

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