Which cloud service category would be most ideal for a cloud customer that is developing software to test its applications among multiple hosting providers to determine the best option for its needs?

Question

Options

• ADaaS
• BPaaS
• CIaaS
• DSaaS

• A
  2% (1)
• B
  79% (34)
• C
  12% (5)
• D
  7% (3)

Explanation

PaaS (Platform as a Service) is correct because it provides developers with a ready-made environment - runtime, frameworks, tools, and infrastructure - specifically designed for building, testing, and deploying applications. When a developer wants to test software across multiple hosting providers, PaaS gives them the portability and development tooling to do so without managing the underlying infrastructure themselves.

Why the others are wrong:

• A. DaaS (Desktop as a Service) delivers virtual desktops to end users - it's about workspace delivery, not application development or hosting.
• C. IaaS (Infrastructure as a Service) provides raw compute, storage, and networking. It could host apps, but it requires the customer to manage the OS and middleware themselves - it's not optimized for the development and testing workflow described.
• D. SaaS (Software as a Service) is fully managed software delivered to end users (e.g., Gmail, Salesforce) - the customer consumes software, not builds and tests it.

Memory tip: Think of the layers - SaaS = you use software, PaaS = you build/test software, IaaS = you manage infrastructure. If the scenario mentions developers doing testing or deployment, PaaS is almost always the answer.

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