300-420 Question 321
Single answerAn enterprise is planning to migrate its on-premises infrastructure to the cloud. The IT team wants to maintain control over sensitive data and applications while leveraging the scalability of public cloud for development and testing. Which deployment and service model combination would best suit this scenario?
- A
Private cloud using IaaS
- B
Public cloud using SaaS
- C
Hybrid cloud using PaaS
- D
Hybrid cloud using IaaS
Show answer and explanation
Correct answer: D
Explanation
The enterprise's requirements point to a hybrid cloud model, which combines the benefits of private and public cloud deployments. Using IaaS in a hybrid cloud configuration allows the organization to keep sensitive data and critical applications on the private cloud while utilizing the public cloud for scalable infrastructure needs, such as development and testing environments. This ensures both security and flexibility.
- A. Incorrect.
Private cloud using IaaS focuses entirely on an organization's internal control and infrastructure, which does not address the need to leverage public cloud scalability for development and testing.
- B. Incorrect.
Public cloud using SaaS is typically used for standardized software applications and does not allow the organization to maintain control over sensitive data and applications.
- C. Incorrect.
Hybrid cloud using PaaS is more suited for application development and does not specifically address the need for infrastructure scalability or control over sensitive data.
- D. Correct.
Hybrid cloud using IaaS allows the organization to maintain control over sensitive resources in the private cloud while leveraging the scalability and flexibility of public cloud infrastructure for development and testing.