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 use of flume in hadoop?

How do I know if flume agent is running?

116

What is flume interceptor?

What are the components of a flume agent?

What is flume and kafka?

How do I start flume agent?

What is contextual routing in flume?

824

What is the use of apache flume?

Which among the flume entities is responsible for performing intermediate processing of jobs?

779

What is difference between flume and sqoop?

200

What is the difference between kafka and flume?

How do I stop flume agent?

What is flume used for?

Is a log flume a roller coaster?

Is apache flume real time processing framework?

Un-Answered Questions { Hadoop }

Explain the key features of hdfs?

Can you explain heartbeat in hdfs?

What is Fault Tolerance in HDFS?

Explain the action count() in Spark RDD?

287

Can you explain smb join in hive?

776

Explain the difference between gen1 and gen2 hadoop with regards to the namenode?

769

How to add column in apache tajo?

Why do we need Pig?

869

Mention what are the most common input formats defined in hadoop?

482

What do you know by storage and compute node?

732

What do you know about keyvaluetextinputformat?

641

Which query language is used in Cassandra database?

106

What is gossip protocol in Cassandra?

What is rack-aware replica placement policy?

1069

Where is apache spark used?

295

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