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 difference between Hbase and Hive?

761

What are different Hive commands available for hive and beeline CLI?

765

What is the prerequisite for Apache Hive installation?

759

RLIKE in Hive?

840

What is the difference between External and Internal Table in Hive?

784

Which companies are mostly using Hive ?

833

What will be the output of cast ('XYZ' as INT)?

728

What is the default maximum dynamic partition that can be created by a mapper reducer? How can you change it?

755

The partition of hive table has been modified to point to a new directory location. Do I have to move the data to the new location or the data will be moved automatically to the new location?

1069

What is Partition table in Hive?

772

What are the default read and write classes in Hive?

704

Hive new version supported Hadoop Versions ?

647

Is multiline comment supported in Hive Script ?

743

What is Implicit Type conversion in Hive?

843

explaine wal in hbase?

180

Un-Answered Questions { Hadoop }

Explain about the core components of Flume?

What is Flume?

114

What is active and passive NameNode in Hadoop?

506

What Is Difference Between Mapreduce and Pig ?

677

Define fault tolerance?

702

What do you know about schemardd?

328

What are the different methods to set up local repositories?

What are the main features of impala?

What is a namenode?

436

How do I download and install spark?

321

What are the different types of Znodes?

1013

What is Resilient Distributed Dataset (RDD) in Apache Spark? How does it make spark operator rich?

304

Can Apache Kafka be used without Zookeeper?

1087

How do you stop a spark?

303

What do you understand by the term snitch in cassandra?

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