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

What are durable writes?

104

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.

101

What is document store db?

Explain the different types of repairs.

What do you mean by snitch?

How does gossip protocol work?

What is column store db? Explain with an example.

Un-Answered Questions { Hadoop }

What is meant by spark in big data?

303

Which language is best for spark?

276

Define Nodetool Utility?

What is spark deploy mode?

325

When would you use hbase?

184

How many InputSplits is made by a Hadoop Framework?

717

What are transformations in spark?

329

Does cloudera offer a vm for demonstrating impala?

If datanodes increase, then do we need to upgrade namenode?

515

Can you explain the common input formats in hadoop?

571

Does spark use hive?

288

What is compute and Storage nodes?

1060

What does impala do for fast access?

What is a distributed cache in mapreduce framework?

663

Explain the common input formats in hadoop?

515

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