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

Hadoop Interview Questions

Questions Answers Views Company eMail

What are the most memory-intensive operations?

What are the main features of impala?

Where can I get sample data to try?

Where can I find impala documentation?

What features from relational databases or hive are not available in impala?

Is hive an impala requirement?

When does impala hold on to or return memory?

What is zookeper?

Mention some instances where zookeeper is using?

How can we create znodes?

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?

Un-Answered Questions { Hadoop }

Does spark use java?

336

What are the network requirements for hadoop?

522

What is sc parallelize in spark?

315

What is the role of zookeeper in hbase?

187

Where is the output of Mapper written in Hadoop?

844

What are the features of Pseudo mode?

545

How Spark handles monitoring and logging in Standalone mode?

347

Why are we using Flume?

What is a hive in big data?

706

Can Flume can distribute data to multiple destinations?

What are possible types of Channel Selectors?

105

Mention the salient features of apache tajo ?

How does hdfs get a good throughput?

File permissions in HDFS?

Why are spark transformations lazy?

308

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