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 is the message broker?

484

Explain apache kafka?

519

List some use cases of apache kafka?

478

How can you send large messages with kafka (over 15mb)?

500

What is the role of a zookeeper in a kafka cluster?

542

What are the major apis available in apache kafka?

503

List some difference between flume and kafka?

478

Can we use kafka without zookeeper?

544

How do I achieve fifo behavior with kafka?

530

What are some alternatives to apache kafka?

562

List few differences between apache kafka and rabbitmq?

570

What does serdes mean in apache kafka?

599

Explain the role of offset in kafka?

516

List some benefits of apache kafka?

548

What is a kafka cluster?

542

Un-Answered Questions { Hadoop }

Explain what is hbase?

153

What is the use of Hcatalog?

939

Is there an update statement?

162

Why do we need MapReduce during Pig programming?

644

State the differences between a node, a cluster and datacenter in Cassandra?

Write a short note on the disadvantages of mapreduce

600

Explain the term HCatalog?

How many types of NoSQL databases are there?

143

Explain the common input formats in hadoop?

467

What is the use of expand cqlsh command in Cassandra?

What is keyspace in Cassandra?

Does Hive support record level Insert, delete or update?

685

What is document store db?

How do you stop a spark?

281

How you can remove the element with a critical present in any other Rdd is Apache spark?

300

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