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 do you mean by Schema Declaration?

What is Apache Kafka?

506

Why is Kafka technology significant to use?

486

Explain the role of the offset?

502

What is the process for starting a Kafka server?

552

What can you do with Kafka?

506

What roles do Replicas and the ISR play?

506

What is the role of the ZooKeeper in Kafka?

495

What are the types of traditional method of message transfer?

560

Explain the role of the Kafka Producer API?

490

In the Producer, when does QueueFullException occur?

515

Why are Replications critical in Kafka?

530

What does ISR stand in Kafka environment?

614

What are consumers or users?

571

What is the main difference between Kafka and Flume?

635

Un-Answered Questions { Hadoop }

What is lineage graph in spark?

267

Explain future growth of Apache Ambari?

Pig Features ?

571

How much Metadata will be created on NameNode in Hadoop?

What are the default configuration files that are used in hadoop?

641

What are the data components used by Hadoop?

700

What problem does Apache Pig solve?

749

How many instances of a jobtracker run on hadoop cluster?

592

What are the different elements of jconsole?

What are the Features of Hadoop?

461

Can you explain apache ambari?

What are ‘reduces’?

662

How can you launch Spark jobs inside Hadoop MapReduce?

302

Highlight the difference between group and Cogroup operators in Pig?

773

What is the use of ZooKeeper?

224

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