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 function of Cluster.Builder class in Cassandra?

136

What is SSTable? How is it different from other relational tables?

116

How does Cassandra write?

Explain the concept of bloom filter?

Explain the concept of Tunable Consistency in Cassandra?

199

How to write a query in Cassandra?

What is the significance of cluster class in Cassandra?

Explain how cassandra writes changed data into commitlog?

What is cluster in Cassandra data model?

What are the key points of data model of Cassandra?

What is Column Family in Cassandra?

Does cassandra support acid tractions?

Define the management tools in Cassandra?

State the differences between a node, a cluster and datacenter in Cassandra?

List the benefits of using Cassandra.

Un-Answered Questions { Big Data }

Explain the difference between nas and hdfs?

What is cqlsh? And why is it used?

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

966

What is map side join?

285

Explain accumulators in apache spark.

2058

How to iterate all rows in ColumnFamily?

Name the management tools in Cassandra?

What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?

1059

What is the relationship between Hadoop, HBase, Hive and Cassandra ?

143

Who uses Cassandra?

What do you mean by logistic regression?

540

Ideally what should be replication factor in a Hadoop cluster?

476

Differentiate HDFS & HBase?

How does impala process join queries for large tables?

What are the relational databases supported in sqoop?

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