Recall & Review
beginner
What does IaaS stand for in cloud computing?
IaaS stands for Infrastructure as a Service. It provides virtualized computing resources over the internet, like servers and storage, so users can build and manage their own platforms.
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beginner
Explain PaaS in simple terms.
PaaS means Platform as a Service. It offers a ready-to-use platform with tools and services so developers can create and run applications without managing the underlying hardware or software.
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beginner
What is SaaS and how do users interact with it?
SaaS stands for Software as a Service. It delivers software applications over the internet that users can access through a web browser without installing anything on their devices.
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intermediate
Give a real-life analogy for IaaS.
IaaS is like renting an empty apartment. You get the space and utilities (like electricity and water), but you bring your own furniture and decorate it yourself.
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intermediate
How do PaaS and SaaS differ in terms of user control?
With PaaS, users control the applications they build but not the platform or hardware. With SaaS, users only use the software provided and have no control over the platform or infrastructure.
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Which cloud service model provides virtual machines and storage but leaves software management to the user?
✗ Incorrect
IaaS offers virtualized hardware resources like servers and storage, but users manage the software themselves.
Which model lets developers build apps without worrying about the underlying hardware?
✗ Incorrect
PaaS provides a platform with tools and services so developers can focus on app creation without managing hardware.
If you use an email service through your web browser without installing software, which model are you using?
✗ Incorrect
SaaS delivers software applications over the internet accessible via browsers.
Which cloud model is like renting a fully furnished apartment ready to live in?
✗ Incorrect
SaaS is like a fully furnished apartment where everything is ready for use without extra setup.
Who manages the operating system in a PaaS model?
✗ Incorrect
In PaaS, the cloud provider manages the operating system and platform infrastructure.
Describe the main differences between IaaS, PaaS, and SaaS using a simple real-life analogy.
Think about renting apartments with different levels of furnishing.
You got /3 concepts.
Explain who manages hardware, software, and applications in each cloud service model: IaaS, PaaS, and SaaS.
Consider what you control and what the provider controls in each model.
You got /3 concepts.