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

Explain the term 'Log Anatomy'?

584

what is the traditional method of message transfer?

720

Explain Sort Order in brief?

164

When to use Avro, explain?

Name some AVRO Reference APIs?

What is the way of creating Avro Schemas?

Who developed Apache Avro?

What is the required action you need to perform if you opt for scheduled maintenance on the cluster nodes?

What are the purposes of using Ambari shell?

What is the role of “ambari-qa” user?

How can we see all the clusters that are available in Ambari?

143

What are the different ways you can use to secure a cluster using Ambari?

How is recovery achieved in Ambari?

Name the three layers, Ambari supports?

State some highlights of Ambari?

Un-Answered Questions { Hadoop }

Who invented hadoop?

722

Is spark distributed computing?

316

Is Apache Spark a good fit for Reinforcement learning?

310

Explain how it is different from the other original tables?

Define compaction in HBase?

168

What is identity mapper and chain mapper?

721

What other technologies have you used in hadoop sta ck?

1020

How to change Replication Factor For below cases ?

1155

What stored in HDFS?

974

Mention what is the difference between an rdbms and hadoop?

473

List the diagnostic operators in pig.

634

Is it possible to do an incremental import using Sqoop?

What is the use of recordreader in hadoop?

462

Mention what are views in Hive?

737

What is configured in /etc/hosts and what is its role in setting Hadoop cluster?

585

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