CompTIA Cloud Essentials+ (CLO-002)Business Principles of Cloud EnvironmentsEasy
A retail company is considering using a cloud-based Customer Relationship Management (CRM) system. They want to avoid managing any of the underlying infrastructure, operating systems, or even the application code. They simply want to use the CRM software as a ready-to-use service. Which cloud service model BEST fits these requirements?
- AFunction as a Service (FaaS)
- BSoftware as a Service (SaaS)
- CInfrastructure as a Service (IaaS)
- DPlatform as a Service (PaaS)
Show answer & explanationAnswer & explanation
Correct answer: B. Software as a Service (SaaS)
Software as a Service (SaaS) delivers a complete, ready-to-use application over the internet. The cloud provider manages all aspects of the software, including infrastructure, operating systems, and application code, allowing the customer to simply consume the service.
Why the other options are wrong
- A. FaaS is a serverless execution model for individual functions, not a complete application like CRM.
- C. IaaS requires the user to manage operating systems, middleware, and applications.
- D. PaaS requires the user to manage applications and data, but not the underlying OS.
Software as a Service (SaaS)
A cloud computing service model that provides ready-to-use applications over the internet, managed entirely by a third-party provider.
- Provider manages all layers: infrastructure, OS, applications, data.
- Users access via a web browser or API.
- Pay-as-you-go or subscription model for the application itself.
Memory trick: SaaS is software you just start to use.