CompTIA Network+ (N10-009)Networking ConceptsEasy
A startup wants to use a third-party email platform accessible via a web browser without managing any underlying servers, storage, or software installations. Which cloud service model best describes this?
- AIaaS
- BDaaS
- CPaaS
- DSaaS
Show answer & explanationAnswer & explanation
Correct answer: D. SaaS
Software as a Service (SaaS) delivers fully managed applications over the internet, requiring no infrastructure or platform management by the customer. Examples include web-based email, CRM, and productivity suites.
Why the other options are wrong
- A. IaaS provides virtualized hardware resources like compute and storage that customers manage.
- B. DaaS refers to Desktop as a Service, providing virtual desktops rather than an email app.
- C. PaaS provides a platform for developers to build applications, not a ready-to-use app.
SaaS (Software as a Service)
A cloud model where a provider delivers a complete application to end users over the internet, handling all underlying infrastructure and maintenance.
- Examples: webmail, Office 365, Salesforce
- Customer manages only user-level configuration
- Contrasts with IaaS (infrastructure) and PaaS (platform)
Memory trick: IaaS=bricks, PaaS=kitchen, SaaS=finished meal