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 elements of jconsole?

What are partitions and tokens in cassandra?

Differentiate between static and dynamic cql tables.

What is key-value store db? Explain with an example.

101

What do you mean by replication factor?

What are durable writes?

104

What are the parameters used to create keyspace in cassandra?

What are the key differences between cassandra and traditional rdbms?

Explain the term commitlog?

What is graph db? Explain with an example.

What are the features of apache cassandra?

How does gossip protocol help in failure detection?

What are the different elements of row in cassandra?

What are the different database elements of cassandra?

Explain nodetool utility.

103

Un-Answered Questions { Big Data }

What is the difference between hadoop and spark?

298

How HDFS client divide the file into the block while storing inside HDFS?

What is an accumulator in spark?

316

Can you define data lake?

553

What is sc textfile?

351

What is the difference between Apache Pig and Hive?

661

What are the differences between Caching and Persistence method in Apache Spark?

323

When you are dealing with static data instead of dynamic data?

780

What is the communication channel between client and namenode/datanode?

1773

Explain the different logging levels in cassandra.

How namenode handles data node failures?

574

Explain what happens in textinformat ?

787

How big data analysis helps businesses increase their revenue?

731

Clarify what combiners are and when you should utilize a combiner in a map reduce job?

652

Is spark and hadoop same?

282

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