Popular Cloud Computing Interview Questions

What is Cloud Computing?

Cloud Computing definition depends on the cloud vendor. In general, Cloud Computing is a style of Computing, that is scalable, contains virtual resources like network, servers, storage, services, applications, hardware, software, applications, and Internal based computing environment.

Why Cloud Computing?

Cloud Computing allows efficient use of resources like Human power, Software, hardware etc. If no Cloud Computing,

  • Cost is more for labor, Infrastructure, development.
  • Resource utilization increases or decreases that leads to capacity difficulties.
  • Resource allocation adjustment difficult.

Services Offered by Cloud Computing.

Cloud Computing offers Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Service (SaaS)

What are the features of Cloud Computing?

  1. Virtualization.
  2. Reliability.
  3. Elasticity and many more.

What are the benefits of Cloud Computing?

  1. Reduce Cost.
  2. Ease of Use.
  3. Automated Update Policy.
  4. Pay per use.
  5. Flexible scaling of resources.
  6. Anytime, Anywhere access to resources.

What are the key Aspects of Cloud Computing?

  • Applications: Google Apps (Mail, phtos etc).
  • Web services: Amazon (Ec2, S3).
  • DB services: Zoho’s cloud SQL.
  • Customizable Application service: force.com(Salesforce Apps).
  • Services(VM management, IP address, naming, etc) and many more.

What is new in Cloud?

  • Acquisition model – Based on the purchasing of services.
  • Business mode – Based on pay for use.
  • Access model – Over the internet to any device.
  • Technical model – Scalable, Elastic, Dynamics, Multitenant etc.

Different deployment models of Cloud Computing.

  1. Public: Open services, available to everyone.
  2. Private: Owned, operated and available to the specific organization.
  3. Hybrid: It is the combination of both public and Private.

Explain Cloud Computing environment role?

  • For providers, it offers clouds to customers via PaaS, Iaas services.
  • Resellers, they take the cloud platform from cloud providers and provide it to large customers/provide enhanced features.
  • Users make use of cloud capabilities.
  • Adopters: Vendors enhance their own services.

What is not Cloud Computing?

  • Internet.
  • SOA
  • Web Services.
  • Grid Computing.
  • Software as a Service (SaaS) and etc.

Evaluation of Cloud Computing?

  1. Mainframe.
  2. PC.
  3. Client Server.
  4. Web Services and
  5. Cloud.

What are the common features of SaaS, PaaS, IaaS?

  • Pay per Use.
  • Instant scalability.
  • Security.
  • Reliability.
  • API and many more.