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Hadoop Interview Questions
Questions Answers Views Company eMail

What are the general Prerequisites to learn HCatalog?

 5

How HCatalog helps to capture processing states to enable sharing?

 5

How to invoke Command Line Interface?

 5

Who is intended audience to learn HCatalog?

 5

Explain HCatalog Create Table CLI along with its syntax?

 5

State some DDL Command with brief Description?

 5

Explain Apache Ambari?

 55

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

 91

What are the particular functionalities of Ganglia in Ambari?

 63

What are the particular functionalities of Nagios in Ambari?

 58

Name several advantages of Apache Ambari?

 55

Who should learn Apache Ambari?

 50

Explain Apache Ambari architecture?

 57

Can Ambari manage multiple clusters?

 72

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

 51

Un-Answered Questions { Hadoop }

when do reducers play their role in a mapreduce task?

615

Explain different queries performed by apache tajo?

5

What is spark accreditation?

272

Highlight the key differences between MapReduce and Apache Pig?

705

What are shared variables in Apache Spark?

325

Do I need to know scala to learn spark?

362

When you point a partition of a hive table to a new directory, what happens to the data?

756

What is the process for starting a Kafka server?

590

Explain what is kafka?

526

Give key features of any NoSQL database?

104

What are the advantages of using map side join in mapreduce?

645

What is the jobtracker?

633

what is NameNode in Hadoop?

877

What are combiners? When should I use a combiner in my MapReduce Job?

899

Why HDFS stores data using commodity hardware despite the higher chance of failures in hadoop?

35

For More Un-Answered { Hadoop } Questions Click Here