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 Mem-table in Cassandra?

176

What are the management tools in Cassandra?

What is cqlsh?

What are the different composite keys in Cassandra?

Name different elements of JConsole?

What is difference between Column and Super Column?

Give the name of some components of Cassandra?

Explain the two types of compactions in Cassandra.

135

What is Cassandra Database Software ?

166

Explain Usage of Hive?

693

How can client interact with Hive?

700

How do you write your own SerDe?

766

What is the significance of ‘IF EXISTS” clause while dropping a table?

715

Can we run unix shell commands from the hive? Give example?

747

How Hive organize the data?

711

Un-Answered Questions { Big Data }

What is the difference between kafka and mq?

521

What is the default input type in MapReduce?

661

How Mapper is instantiated in a running job?

993

How do we write our own custom serde?

708

Can you define yarn?

286

What do you understand by the partitions in spark?

317

Define replication strategy?

What is the optimal block size in HDFS?

What do you understand by column family?

What is a MapReduce Combiner?

795

What is spark yarn executor memoryoverhead?

370

What are the differences between relational databases and impala?

Who uses Cassandra?

What does rdd stand for in logistics?

315

Mention some important components of cassandra data models?

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