Hadoop Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Hadoop Interview Questions

Questions Answers Views Company eMail

What are the general Prerequisites to learn HCatalog?

How HCatalog helps to capture processing states to enable sharing?

How to invoke Command Line Interface?

Who is intended audience to learn HCatalog?

Explain HCatalog Create Table CLI along with its syntax?

State some DDL Command with brief Description?

Explain Apache Ambari?

How many layers of Hadoop components are supported by Apache Ambari and what are they?

What are the particular functionalities of Ganglia in Ambari?

What are the particular functionalities of Nagios in Ambari?

Name several advantages of Apache Ambari?

Who should learn Apache Ambari?

Explain Apache Ambari architecture?

Can Ambari manage multiple clusters?

What are the major areas where Ambari helps the system administrators to do?

Un-Answered Questions { Hadoop }

How do you set up a spark?

295

What are accumulators in Apache Spark?

330

What is fluming?

161

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

149

What is the no. Of threads created by impala?

What happens when you submit spark job?

284

What is the purpose of button groups?

803

What is avro format?

What do you understand by Commit log in Cassandra?

What is partitioning?

500

Is spark faster than hadoop?

363

How do I download and install spark?

319

Can you overwrite Hadoop MapReduce configuration in Hive?

951

What is the problem in having lots of small files in hdfs?

What is a DStream?

333

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