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

Is it important for Hadoop MapReduce jobs to be written in Java?

845

what job does the conf class do?

788

What is the key- value pair in Hadoop MapReduce?

679

What is InputFormat in Hadoop MapReduce?

666

What are the various InputFormats in Hadoop?

650

Explain InputSplit in Hadoop MapReduce?

674

How much space will the split occupy in Mapreduce?

672

What is a RecordReader in Hadoop MapReduce?

676

What is the difference between HDFS block and input split?

887

How to write MapReduce Programs?

714

What is Apache Hive?

825

What kind of applications is supported by Apache Hive?

812

How can you configure remote metastore mode in Hive?

829

What is indexing and why do we need it?

825

What is the use of Hcatalog?

938

Un-Answered Questions { Hadoop }

What is the use of tracing cqlsh command in Cassandra?

When does queuefullexception occur?

647

Explain the key features of hdfs?

What can be optimum value for Reducer?

947

Explain the difference between an inputsplit and a block?

427

What is active and passive NameNode in Hadoop?

463

What does rdd mean?

314

What are consumers in kafka?

541

How apache spark works?

294

State some highlights of Ambari?

What is a kafka cluster?

542

What is kafka message?

500

What are the fundamental configurations parameters specified in map reduce?

635

What is dynamic partitioning and when is it used?

1041

What is spark master?

340

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