Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

Name the types of tunable consistency?

What is the History of Cassandra Database ?

What is the Virtual Node in Cassandra ?

What is the main objective of creating Cassandra?

106

What is Replication Factor in Cassandra?

Define the consistency levels for read operations in Cassandra?

Name some features of Apache Cassandra?

How to iterate all rows in ColumnFamily?

What is a column family in Cassandra?

Name different types of NoSQL database?

What is SSTable?

Define data replication?

What is the Cassandra Coefficient ?

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

148

Explain Cqlsh?

Un-Answered Questions { Big Data }

What is Partition table in Hive?

731

What is the difference between namenode, backup node and checkpoint namenode?

Tell the purpose of Bloom Filter in Cassandra?

213

What is the difference between traditional RDBMS and Hadoop?

1173

What is hadoop spark?

299

Explain the operation transformation and action in Apache Spark RDD?

328

What are the disservices of utilizing Apache Spark over Hadoop MapReduce?

632

What are the types of Transformation in Spark RDD Operations?

286

Can ambari manage multiple clusters and why?

Who created spark?

289

How do you specify the table creator name when creating a table in hive?

692

When you should use Hbase?

910

What does hadoop-metrics.properties file do?

529

Explain how you can reduce churn in isr? When does broker leave the isr?

750

What happens if there is an error in impala?

243

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