Public works must lift-and-shift a legacy permit binary that requires a specific operating system image. Which cloud service type best fits that use case?
Select an answer to reveal the explanation.
Short Explanation
That crusty permit program is picky about its OS — IaaS is the workshop where you still get to pick the machine and the operating system. SaaS and many PaaS offerings will not hand you a custom guest OS for a lift-and-shift binary. Move the box, keep the OS, that is the IaaS play.
Full Explanation
IaaS supplies virtualized infrastructure such as VMs so customers can install and run a required operating system and lift-and-shift workloads. A legacy permit binary that depends on a specific OS is a classic IaaS use case. SaaS delivers finished apps, and PaaS abstracts much of the OS, so neither is the natural fit when the requirement is this exact OS image.