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

Big Data Interview Questions

Questions Answers Views Company eMail

Define NoSQL Database?

What Platforms Cassandra runs on?

Give some advantages of Cassandra?

What is the use of “void close()” method?

What are the collection data types provided by CQL?

What is the use of “ResultSet execute(Statement statement)” method?

What do you mean by consistency in Cassandra?

182

Give the data storage units in Cassandra?

What is data replication in Cassandra?

When can you use ALTER KEYSPACE?

What is the concept of SuperColumn in Cassandra?

How many types of tunable consistency are supported in Cassandra?

Mention what are the values stored in the Cassandra Column?

What do you understand by Consistency in Cassandra?

How many types of NoSQL databases are there?

141

Un-Answered Questions { Big Data }

What are the different methods to set up local repositories?

What are the different String functions available in pig?

772

What is difference between hive and spark?

250

How is transformation on rdd different from action?

328

What is aws spark?

254

What is the role of alter keyspace?

What do you mean by the high availability of a namenode?

Explain Avro Schemas?

What is the work of Export in Hadoop sqoop?

What is data replication in Cassandra?

What is spark yarn executor memoryoverhead?

350

Compare rdbms with hbase?

142

Define Apache Pig?

584

List out some key features of apache cassandra?

Tell the purpose of Bloom Filter in Cassandra?

209

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