Cloud Computing Top Interview Questions

What is “EUCALYPTUS” stands for?

“EUCALYPTUS” stands for Elastic Utility Computing Architecture for Linking Your Programs to Useful Systems”.

Explain what is the use of “EUCALYPTUS” in cloud computing?

“Eucalyptus” is an open-source software infrastructure in cloud computing, which is used to implement clusters in cloud computing platform. It is used to build public, hybrid and private clouds. It has the ability to produce your own datacenter into a private cloud and allows you to use its functionality to many other organizations.

What is the requirement of virtualization platform in implementing cloud?

The requirement of virtualization platform in implementing cloud is to

  • Manage the service level policies
  • Cloud Operating System
  • Virtualization platforms helps to keep the backend level and user level concepts different fromeach other

Before going for cloud computing platform what are the essential things to be taken in concern by users?

  • Compliance
  • Loss of data
  • Data storage
  • Business continuity
  • Uptime
  • Data integrity in cloud computing

Mention some open source cloud computing platform databases?

The open source cloud computing platform databases are

  • MongoDB
  • CouchDB
  • LucidDB

What are the security laws which are implemented to secure data in a cloud ?

The security laws which are implemented to secure data in cloud are 

  • Processing: Control the data that is being processed correctly and completely in an application
  • File: It manages and control the data being manipulated in any of the file
  • Output reconciliation: It controls the data which has to be reconciled from input to output
  • Input Validation: Control the input data
  • Security and Backup: It provides security and backup it also controls the security breaches logs

Mention the name of some large cloud providers and databases?

  • Google bigtable
  • Amazon simpleDB
  • Cloud based SQL

Explain the difference between cloud and traditional datacenters?

  • The cost of the traditional data center is higher due to heating and hardware/software issues
  • Cloud gets scaled when the demand increases. Majority of the expenses are spent on themaintenance of the data centers, while that is not the case with cloud computing

Explain what are the different modes of software as a service (SaaS)?

  • Simple multi-tenancy : In this each user has independent resources and are different from otherusers, it is an efficient mode.
  • Fine grain multi-tenancy: In this type, the resources can be shared by many but thefunctionality remains the same.