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

Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)

Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)

Hadoop Interview Questions

Questions Answers Views Company eMail

Explain the concept of resilient distributed dataset (rdd).

2072

What do you understand by schemardd in apache spark rdd?

2290

What are roles in cqlsh?

what is gossip protocol?

What are snapshots and how do you create one in cassandra?

What is the use of coordinator node in read?

Explain the different logging levels in cassandra.

What are clusters in cassandra?

What is network topology strategy?

How is a keyspace created in cassandra? & What are the parameters used?

What is graph db?

How is a keyspace created in cassandra?

132

What is cqlsh? And why is it used?

What is document store db? Explain with an example.

What is a nosql database?

Un-Answered Questions { Hadoop }

What do you mean by Stream Processing in Kafka?

547

What are different modes of execution in Apache Pig?

918

What do masters consist of?

725

What are the downsides of Spark?

375

What is Zookeeper Cluster?

What does serdes mean in apache kafka?

643

What is Apache Spark Streaming?

347

What is the primary objective of NoSQL databases?

When to use secondary indexes?

Explain the Differences between Hive and Spark SQL?

757

What are the different components of Cassandra?

109

Explain the Features of HBase?

217

Can hadoop handle streaming data?

488

What is the difference between Hiveserver1 and Hiveserver2?

855

Does the hdfs client decide the input split or namenode?

717

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