9.5 Cloud Computing

What is the difference between IaaS and PaaS?

Only charge for what you use Iaas, PaaS provides you ability to build infrastructure-software design and implementation

Which of the following cloud computing solutions will deliver software applications to a client either over the internet or on a local area network?

SaaS

What two implementations are available for SaaS?

Software as a service--simple multi-tenancy where clients have their own resources that are segregated from other customers fine grain multi-tenancy where resources are shared but the data is segregated from other customers

Which of the following are true regarding cloud computing? (Select three.)

-The term "cloud" is used as a synonym for the internet. -Typical cloud computing providers deliver common business applications online that are accessed from another web service or software like a web browser. . -Cloud computing is software, data access, computation, and storage services provided to clients through the internet.

Cloud computing can be implemented in several different ways, including the following:

A public cloud can be accessed by anyone. Cloud-based computing resources are made available to the general public by a cloud service provider. The service provider may or may not require a fee for using these resources. For example, Google provides many publicly accessible cloud applications, such as Gmail and Google Docs. A private cloud provides resources to a single organization. Access is restricted to only the users within that organization. An organization commonly enters into an agreement with a cloud service provider that provides secure access to cloud-based resources. The organization's data is kept separate and secure from any other organization using the same service provider. A community cloud is designed to be shared by several organizations. Access is restricted to only users within the organizations who are sharing the community cloud infrastructure. Community clouds are commonly hosted externally by a third party. A hybrid cloud is composed of a combination of public, private, and community cloud resources from different service providers. The goal behind a hybrid cloud is to expand the functionality of a given cloud service by integrating it with other cloud services.

You were recently hired by a small start-up company. The company is in a small office and has several remote employees. You have been asked to find a business service that would accommodate the current size of the company, but would also be able to scale as the company grows. The service needs to provide adequate storage, as well as additional computing power. Which cloud service model should you use?

Infrastructure as a service (IaaS) delivers infrastructure to the client, such as processing, storage, networks, and virtualized environments. The client deploys and runs software without purchasing servers, data center space, or network equipment.

Which of the following best describes the platform as a service (PaaS) cloud computing service model?

PaaS delivers everything a developer needs to build an application onto the cloud infrastructure.