4. Public cloud as a “cloud made available in a pay-as-you-go manner to the
general public”
Benefits -Cost Effective, Flexibility, Realibility, Location Independence
Less Security
private cloud as “internal data center of a business or other organization, not
made available to the general public.”
Benefits – High Security & Privacy, more control
Restricted area of protection
5. A hybrid cloud takes shape when a private cloud is supplemented with computing
capacity from public clouds .It temporarily renting capacity to handle spikes in
load is known as “cloud-bursting”.
Scalability, Flexibility, Cost efficiency, Security
Network issues, Infrastructure dependency
A community cloud is “shared by group of organizations and supports a specific community that
has shared concerns (e.g., mission, security requirements, policy, and compliance considerations) “.
6. Features of a Cloud
¥ Self Service –on demand , pay and use
¥ Per usage metering and Billing - Storage, Processing
and bandwidth
¥ Elasticity
¥ Customization