10 Questions
What is cloud computing?
A model for enabling convenient, on-demand network access to a shared pool of configurable computing resources
What is provided to the consumer in a Software as a Service (SaaS)?
The capability to use the provider's applications running on a cloud infrastructure
What is an example of a Cloud Platform as a Service (PaaS)?
Google App Engine
What is provided to the consumer in a Cloud Infrastructure as a Service (IaaS)?
The capability to provide processing, storage, networks, and other fundamental computing resources
What is a characteristic of cloud computing?
It can be rapidly provisioned and released with minimal management effort
What is a characteristic of the deployment model in a private cloud?
It is operated solely for an organization
What is an advantage of cloud computing?
It provides reliable and secure data storage center
What is a characteristic of the infrastructure as a service (IaaS) model?
The consumer has control over the operating system and storage
What is a type of cloud deployment model where the cloud infrastructure is shared by several organizations?
Community cloud
What is a characteristic of a hybrid cloud?
It is a composition of two or more clouds
Study Notes
What is Cloud Computing?
- Cloud computing is a model that enables convenient, on-demand network access to a shared pool of configurable computing resources.
- It provides high-level abstraction of computation and storage models, and can be rapidly provisioned and released with minimal management effort.
Service Models
-
Cloud Software as a Service (SaaS)
- Provides the capability to use a provider's applications running on a cloud infrastructure.
- Applications are accessible from various client devices, such as a web browser.
- Examples: Caspio, Google Apps, Salesforce, Nivio, Learn.com.
-
Cloud Platform as a Service (PaaS)
- Provides the capability to deploy consumer-created or acquired applications onto the cloud infrastructure.
- The consumer does not manage or control the underlying cloud infrastructure.
- Examples: Google App.
-
Cloud Infrastructure as a Service (IaaS)
- Provides the capability to deploy and run arbitrary software, including operating systems and applications.
- The consumer has control over operating systems, storage, deployed applications, and possibly limited control of select networking components.
- Examples: Amazon EC2, GoGrid, iland, Rackspace Cloud Servers, ReliaCloud.
Deployment Models
-
Private Cloud
- Operated solely for an organization.
- May be managed by the organization or a third party, and may exist on or off premise.
-
Community Cloud
- Cloud infrastructure is shared by several organizations and supports a specific community that has shared concerns.
- May be managed by the organizations or a third party, and may exist on or off premise.
-
Public Cloud
- Cloud infrastructure is made available to the general public or a large industry group.
- Owned by an organization selling cloud services.
-
Hybrid Cloud
- Composition of two or more clouds (private, community, or public).
Advantages of Cloud Computing
- Does not need high-quality equipment for the user, and is very easy to use.
- Provides reliable and secure data storage center.
- Reduces run time and response time.
- Is a large resource pool that can be bought on-demand.
Learn about the fundamentals of cloud computing, including its definition, service models, and benefits. Understand how it provides convenient, on-demand access to a shared pool of computing resources.
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