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 syntax to create keyspace in Cassandra?

122

What is the role of CQLSH?

Define data centre?

110

Define composite key?

Can we change Replication Factor on a live cluster?

What is bloom filter?

Talk about the concept of tunable consistency in Cassandra.

127

Establish the difference between a node, cluster & data centres in Cassandra.

143

Explain Tombstone in Cassandra?

List the steps in which Cassandra writes changed data into commitlog?

223

Does Cassandra support ACID transactions?

105

What is the replica placement Strategy in Cassandra ?

What are the main features of SPM in Cassandra?

Can you add or remove Column Families in a working Cluster?

What is CQL?

Un-Answered Questions { Big Data }

When should you use a reducer?

630

What happens if there is an error in impala?

243

Can you explain sqoop metastore?

What are the types of traditional method of message transfer?

593

What do you know about nlineinputformat?

683

Distinguish HDFS Block and Input Unit?

What is the difference between Hadoop and Traditional RDBMS?

923

What are producer-consumer queues?

What is the difference between scala and spark?

313

How can you use adminclient api?

581

Is spark a language?

279

What is having clause in apache tajo?

What is apache tajo?

What do you know by storage and compute node?

689

Explain how can we check whether namenode is working or not?

570

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