Interview Questions PART-1

Questions Answers related to Cloud Computing and Virtualization for Interviews 

Q1)  What is SAAS?

Ans-SAAS is a Software as a service is a form of cloud computing, which provides software to the users or organizations to use. The main benefit is that the license is maintained by the service provider its not a headache of the user. The best example is        Google docs.

Q2)  Is Google AppEngine is SAAS or PAAS.

Ans- Google App engine is PAAS as it provides the platform for web hosting applications on Google-managed data centers.

Q3) State the Basic Characteristics of Cloud Computing.

Ans- 1) On-Demand Self Service

         2) Multi-tenancy and Resource Pooling

         3) Broad-Network Access

         4) Rapid Elasticity and Scalability

         5) Measured Service

Q4) What are the benefits of Cloud Computing?

Ans- 1) Disaster Recovery

         2) Data Security

         3) Scalability

         4) Cost Reduction

         5) Better Efficiency

Q5) What is the difference between scalability and elasticity?

Ans-Elasticity and Scalability are two different terms in cloud computing but are related to each other. Elasticity means that if there is a high demand of resources, it enables the hypervisor to create new virtual machines or containers means Elasticity is defined for cloud infrastructure whereas Scalability means if the load is high it highlights the system's capability, process to handle the growth means scalability is mainly for the application layer.

Q6) Why nowadays, companies are moving towards cloud computing.

Ans- As Cloud Computing helps in cost-saving, increase productivity, more secure data backup and data storage. 

Q7) How can you secure the data, while transporting in the cloud?

Ans- Use the Encrypted key for securing the data.

Q8) Mention platform which is used for large scale cloud computing.

Ans- Apache Hadoop

         Map Reduce

Q9)What is IAAS?

Ans- IAAS is Infrastructure as a Service which is a form of cloud computing, it provides the virtualized resources over the internet to the users who requested.

Q10)What is PAAS?

Ans-PAAS is Platform as a Service which is a form of Cloud Computing, it provides        platform and the environment to create the applications by the developers.

Cloud Computing

Virtualization