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 role of Consumer API?

514

Explain Multi-tenancy?

559

What is Data Log in Kafka?

818

Features of Kafka Stream?

516

What are Replication Tool and its types?

572

Explain how to Tune Kafka for Optimal Performance?

548

What do you mean by Stream Processing in Kafka?

527

Explain the role of Streams API?

549

how you can improve the throughput of a remote consumer?

613

What is kafka Producer?

537

What does it indicate if replica stays out of ISR for a long time?

715

What is Importance of Java in Apache Kafka?

554

Compare RabbitMQ vs Apache Kafka?

576

Why replication is required in Kafka?

516

what is the meaning of broker in Kafka?

550

Un-Answered Questions { Hadoop }

Does Cassandra work on Windows?

What is nlineoutputformat?

685

Can we do online transactions(oltp) using hadoop?

677

What is hadoop spark?

303

Explain the role of offset in kafka?

523

What are input format, input split & record reader and what they do?

631

Explain countByValue() operation in Apache Spark RDD?

269

What exactly is spark?

274

How does a namenode handle the failure of the data nodes?

700

Does spark use java?

323

How does Cassandra delete data?

What are the Hadoop features extended to its eco-system components ?

446

Does Apache Sqoop have a default database?

What is the reason behind Transformation being a lazy operation in Apache Spark RDD? How is it useful?

482

How can you connect an application

1038

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