24. A research institution needs a cloud computing solution that enables it to deploy and manage virtual machines, networks, and storage while leveraging the provider's physical infrastructure. Which cloud service model is being used?
Answer: B
Infrastructure as a Service (IaaS)
Infrastructure as a Service (IaaS) is the cloud service model being used, as it allows the research institution to deploy and manage virtual machines, networks, and storage while utilizing the provider's physical infrastructure.
A) Platform as a Service (PaaS)
Platform as a Service (PaaS) is primarily focused on providing a platform for developers to create, test, and deploy applications without managing the underlying infrastructure. While it supports application development, it does not provide the level of control over virtual machines and storage as required by the research institution.
B) Infrastructure as a Service (IaaS)
Infrastructure as a Service (IaaS) provides the necessary components such as virtual machines, networks, and storage, allowing users to manage and configure their own computing resources. This model perfectly aligns with the institution's need to leverage the provider's physical infrastructure while maintaining control over their virtual environment.
C) Private cloud
A private cloud refers to a cloud infrastructure that is exclusively used by a single organization, providing enhanced security and control. However, the question is specifically about a cloud service model, and while a private cloud can utilize IaaS, it does not directly address the model itself.
D) Software as a Service (SaaS)
Software as a Service (SaaS) delivers software applications over the internet, eliminating the need for installation and management on local devices. This model does not provide the infrastructure capabilities needed for deploying and managing virtual machines, making it unsuitable for the institution's requirements.
Conclusion
Infrastructure as a Service (IaaS) is the most appropriate choice as it meets the specific needs of the research institution for managing virtual machines, networks, and storage. The other options either do not provide the necessary infrastructure control or focus on different aspects of cloud computing, making them inadequate for the scenario presented.