Question 1

In which cloud service model does the cloud provider manage the operating system, middleware, and runtime, while the customer manages only their applications and data?

Accepted Answer

Platform as a Service (PaaS). The provider handles the underlying infrastructure and platform layers, freeing developers to focus on building and deploying applications.

Question 2

Which cloud service model gives customers the most control over the underlying infrastructure, including the operating system and installed software?

Accepted Answer

Infrastructure as a Service (IaaS). Customers rent virtualized compute, storage, and networking resources and are responsible for managing everything above the hypervisor layer.

Question 3

A company uses Microsoft 365 for email and document collaboration without managing any servers or software updates. Which cloud service model does this represent?

Accepted Answer

Software as a Service (SaaS). The provider manages everything — infrastructure, platform, and the application itself — and users simply access the software via a browser or thin client.

Question 4

Under the shared responsibility model in IaaS, which component is the customer solely responsible for?

Accepted Answer

The customer is solely responsible for the data, access management, and applications they deploy. The cloud provider is responsible for the physical hardware, network, and hypervisor.

Question 5

Which cloud service model shifts the most operational responsibility to the cloud provider, leaving the customer responsible for the least?

Accepted Answer

Software as a Service (SaaS). The provider manages the infrastructure, platform, and application, while the customer is only responsible for their data and user access.

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