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

Big Data Interview Questions

Questions Answers Views Company eMail

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?

What are the different types of Ambari repositories?

What is a local repository and when will you use it?

169

Un-Answered Questions { Big Data }

Describe Memtable?

Is there another way to check whether Namenode is working?

405

Map reduce jobs take too long. What can be done to improve the performance of the cluster?

698

Who invented the first spark plug?

234

What is lazy evaluation in Spark?

317

What Platforms Cassandra runs on?

How can we create children / sub-znode?

How does a client read/write data in HDFS?

Explain Erasure Coding in Apache Hadoop?

756

Explain the steps to be followed to deploy a big data solution?

502

Can you explain edge nodes in hadoop?

439

What are the main components of MapReduce Job?

684

What is JPS? Why is it used in Hadoop?

529

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

732

What is Flatten?

561

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