CompTIA Network+ (N10-009) — Question 239

Which of the following cloud service models most likely requires the greatest up-front expense by the customer when migrating a data center to the cloud?

Answer options

• A. Infrastructure as a service
• B. Software as a service
• C. Platform as a service
• D. Network as a service

Correct answer: A

Explanation

Infrastructure as a Service (IaaS) typically involves significant up-front costs because customers must provision and configure the underlying physical resources, such as servers and storage. In contrast, Software as a Service (SaaS), Platform as a Service (PaaS), and Network as a Service (NaaS) generally involve lower initial investments, focusing more on usage-based pricing models.