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

Why Hive is not suitable for OLTP systems?

742

What is BloomMapFile used for?

676

In case of embedded Hive, can the same metastore be used by multiple users?

802

What are the Binary Storage formats supported in Hive?

734

I want to see the present working directory in UNIX from hive. Is it possible to run this command from hive?

669

What is the use of explode in Hive?

733

How data transfer happens from HDFS to Hive?

829

Can we say cogroup is a group of more than 1 data set?

732

How can the columns of a table in hive be written to a file?

711

What are the different collection type in Hive?

722

How would you drop a table in Hive?

735

When a large data set is maintained?

727

What is Bucket in Hive?

733

When you are dealing with static data instead of dynamic data?

745

What is Hive Database?

710

Un-Answered Questions { Hadoop }

Is apache spark in demand?

267

Developing a MapReduce Application?

971

What is Input Split in hadoop?

990

What is map/reduce job in hadoop?

645

What are the functionalities of jobtracker?

679

Is piglatin a strongly typed language? If yes, then how did you come to the conclusion?

631

How to start and stop spark in interactive shell?

344

Describe Replication Factor?

What is the role of “ambari-qa” user?

Explain Spark Driver?

334

Explain Hadoop streaming?

482

What are the main features of SPM in Cassandra?

What is a generic udf in hive?

747

Explain the functionality of object-inspector.

729

Explain Spark Core?

303

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