Propose two organizations that provides Cloud services for hosting the DCB servers. Justify your answer by explaining the level of services each company provides that suit the organization requirements. 2. Outline the techniques of using service virtualisation in supporting and implementing Cloud platforms 3. Demonstrate how the virilization and Cloud computing can support the dynamic scaling of the selected organization applications.

Infrastructure-as-a-Service (IaaS) is a cloud-computing offering in which a vendor provides users access to computing resources such as servers, storage and networking. Organizations use their own platforms and applications within a service provider’s infrastructure.

Key features

• Instead of purchasing hardware outright, users pay for IaaS on demand.
• Infrastructure is scalable depending on processing and storage needs.
• Saves enterprises the costs of buying and maintaining their own hardware.
• Because data is on the cloud, there can be no single point of failure.
• Enables the virtualization of administrative tasks, freeing up time for other work.

To learn more about IaaS, see “What is Infrastructure-as-a-Service (IaaS)?“

PaaS

Platform as a service (PaaS) is a cloud computing offering that provides users with a cloud environment in which they can develop, manage and deliver applications. In addition to storage and other computing resources, users are able to use a suite of prebuilt tools to develop, customize and test their own applications.