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

Big Data Interview Questions

Questions Answers Views Company eMail

How can we create children / sub-znode?

How can we remove a znode?

Explain the zookeeper workflow?

What are the basics of zookeeper api?

What is mandatory while creating a table in cassandra?

Explain what is cassandra?

List out the other components of cassandra?

101

What is the use of cassandra and why to use cassandra?

155

Explain what is a column family in cassandra?

124

what is a cluster in cassandra?

105

what are the main components of cassandra data model?

what is composite type in cassandra?

what are the values stored in the cassandra column?

When to use secondary indexes?

What are the benefits of NoSQL over relational database?

225

Un-Answered Questions { Big Data }

What is connection_loss error?

Use of import-all-tables command in hadoop sqoop?

Give some advantages of Cassandra?

What is yarn in hadoop?

720

What are the possible Job roles?

How to get the single file as the output from MapReduce Job?

683

What is the use of dataframe in spark?

306

Differentiate between drop and truncate in cqlsh

State Disadvantages of Apache Kafka?

665

What is spark in python?

307

What is used to store data generally?

State some applications of HBase?

173

What is accumulators and broadcast variables in spark?

339

Explain HCatStorer APIs?

What is the difference between Caching and Persistence in Apache Spark?

340

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