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'?

582

what is the traditional method of message transfer?

718

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 }

What is the relationship between Hadoop, HBase, Hive and Cassandra ?

151

How can you delete the DBPROPERTY in Hive?

677

What is executor and driver in spark?

299

What are the benefits/ advantages of Cassandra?

Which are the various data sources available in spark sql?

304

What are the capabilities of kafka?

594

Why is Apache Spark faster than Apache Hadoop?

882

What is the difference between persist

365

What is a Task instance in Hadoop? Where does it run?1

888

How to perform the inter-cluster data copying work in HDFS?

How does apache spark engine work?

332

List the diagnostic operators in pig.

634

how Cassandra delete Data?

114

How does fault tolerance work in mapreduce?

691

What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?

578

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