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 are the different elements of jconsole?

What are partitions and tokens in cassandra?

Differentiate between static and dynamic cql tables.

What is key-value store db? Explain with an example.

What do you mean by replication factor?

What are durable writes?

What are the parameters used to create keyspace in cassandra?

What are the key differences between cassandra and traditional rdbms?

Explain the term commitlog?

What is graph db? Explain with an example.

What are the features of apache cassandra?

How does gossip protocol help in failure detection?

What are the different elements of row in cassandra?

What are the different database elements of cassandra?

Explain nodetool utility.

Un-Answered Questions { Big Data }

Does spark load all data in memory?

340

What is the latest version of ambari that is available in the market and what is the feature that they have added in it?

What is the function of NodeManager?

907

What are the key features of HDFS?

What is the meaning of speculative execution in Hadoop? Why is it important?

1056

Where is Mapper output stored?

853

What port does spark use?

315

While processing data from hdfs, does it execute code near data?

Explain Erasure Coding in Apache Hadoop?

750

What is partitioning in MapReduce?

716

Explain why do we need hadoop?

660

What is interactive mode in apache pig?

536

what is "map" and what is "reducer" in Hadoop?

632

What is Combiner in Hadoop?

534

Does Apache Flume provide support for third party plug-ins?

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