You have an on-premises network that contains 100 servers. You need to (AZ-900)

Correct answer: D) A hybrid cloud.
A hybrid cloud approach combines the use of both on-premises (private) resources and public cloud resources. This allows you to leverage the benefits of both environments and optimize your resource utilization.

Here's why a hybrid cloud is the best recommendation in this scenario:
A complete migration to the public cloud may not be the most cost-effective solution, as it may require significant upfront investments to migrate all 100 servers and their associated workloads to the public cloud.
Building an additional data center would require significant capital expenditure for the infrastructure, as well as ongoing operational costs for maintenance and management.
A private cloud, while providing more control and customization, would still require substantial capital and operational expenditures to set up and maintain the private cloud infrastructure.

In contrast, a hybrid cloud approach allows you to:
Utilize your existing on-premises resources (the 100 servers) for workloads that are best suited to the private environment.
Leverage the public cloud for additional resources, such as burst capacity or specific services, as needed, without the need for significant upfront investments.
Optimize your resource utilization and costs by dynamically allocating workloads between the on-premises and public cloud environments based on demand and cost-effectiveness.
This hybrid approach enables you to scale and expand your resources as needed, while minimizing capital and operational expenditure costs, as you can leverage the public cloud's pay-as-you-go model for the additional resources.