A company rents a building and carries out renovation and purchase of office supplies by itself. Meet the requirements that can be directly delivered to employees for office use. If you compare the…

Question

Options

• AIaaS
• BPaas
• CSaaS
• DMaas

• A
  78% (21)
• D
  22% (6)

Explanation

This question uses a workplace analogy to map real-world operations onto cloud service models (IaaS, PaaS, SaaS). Each activity the company performs maps to one layer of the cloud stack:

Why A, B, and C are all correct: Renting the building maps to IaaS - the company obtains raw infrastructure but manages everything on top of it, just as IaaS provides compute/storage/networking without managing the OS or apps. Performing the renovation maps to PaaS - the company builds and customizes on top of that infrastructure to create a usable environment, mirroring how PaaS provides a platform (runtime, middleware) for development without managing the underlying hardware. Purchasing office supplies for direct employee use maps to SaaS - the end product is ready-to-use and delivered straight to the consumer, exactly like SaaS delivers finished applications to users.

Why D is wrong: MaaS (Metal as a Service) refers to bare-metal server provisioning, sitting below IaaS in the stack. No part of the analogy (renting, renovating, supplying) corresponds to raw physical hardware allocation, so it has no role here.

Memory tip: Use the building analogy to lock in the hierarchy - Infrastructure = bare walls you rent, Platform = the renovation you do, Software = the supplies you hand directly to users. Going from A→B→C moves you from "raw resource" to "ready to use," which is exactly the IaaS→PaaS→SaaS ladder.

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