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 }

State the limitations of Apache Pig?

616

How does Cassandra write?

What is the difference between Input Split and an HDFS Block?

Is it possible to share data files between different components?

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

711

Define compaction in HBase?

168

What is the default port of presto?

What is job tracker in Hadoop?

500

What is bag data type in Pig?

678

What do you understand by cql?

When should we use SORT BY instead of ORDER BY?

690

How can we create children / sub-znode?

List the relational operators in pig.

629

What is bookkeeper?

How to enable recycle bin or trash in hadoop?

706

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