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 }

What do you understand by an inner bag and outer bag in Pig?

853

How many compaction types are in HBase?

181

For using hadoop list the network requirements?

471

What is Flume?

112

Explain pigdump function?

615

In HDFS, how Name node determines which data node to write on?

What ensures load balancing of the server in Kafka?

658

What is difference between scala and spark?

319

What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?

434

What do you mean by Free Form Import in Sqoop?

Define Simple Strategy?

128

What is tungsten in spark?

393

Is spark an etl?

294

What is the prerequisite for Apache Hive installation?

721

What is shuffleing in mapreduce?

648

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