Question 1

Which cloud model provides a develop-and-deploy environment?

🟩 Platform as a Service (PaaS)
❌ Software as a Service (SaaS)
❌ Function as a Service (FaaS)
❌ Infrastructure as a Service (IaaS)

Explanation:
PaaS gives developers a ready-made environment (runtime, middleware, dev tools) to build and deploy apps without managing servers.

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Question 2

Which model fits an organization wanting cloud collaboration tools with low maintenance?

❌ IT as a service (ITaaS)
❌ Infrastructure as a Service (IaaS)
❌ Platform as a Service (PaaS)
🟩 Software as a Service (SaaS)

Explanation:
SaaS apps (Google Workspace, Office 365, etc.) require no installation, no updates, no infrastructure maintenance—ideal for teams with limited IT staff.

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Question 3

Which is a benefit of IaaS?

🟩 It’s efficient, as IaaS resources are available when needed and capacity isn’t overbuilt.
❌ Reduces development time (this is PaaS).
❌ Cost-effective subscription fee (this describes SaaS).
❌ Low management overhead (this describes SaaS/PaaS).

Explanation:
IaaS provides scalable compute, storage, and networking—pay only for what you use, avoiding over-provisioning.

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Question 4

In the shared responsibility model, what are customers always responsible for?

❌ OS, hardware, physical security (provider handles this in most cloud models).
🟩 Customers must secure anything they create/configure: access policies, configurations, and user data.
❌ All infrastructure decisions (not true in PaaS/SaaS).
❌ Not responsible for data (false—customers are ALWAYS responsible for their data).

Explanation:
Regardless of IaaS/PaaS/SaaS, customers always own their data, identity, and access configurations.

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🧾 Summary Table