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IaaS, PaaS & SaaS Models Flashcards

7 cards from real CCP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 IaaS, PaaS & SaaS Models flashcards as text

  1. A company needs to migrate its on-premises virtual machines to the cloud with minimal changes to its existing OS configurations. Which cloud service model is most appropriate?

    Answer: IaaS

    IaaS provides virtualized infrastructure including VMs, storage, and networking, allowing migration of existing OS configurations with minimal changes.

  2. Which of the following is a key disadvantage of the SaaS model for enterprise customers?

    Answer: Limited customization options

    SaaS applications offer limited customization because the vendor controls the entire software stack, which may not meet all enterprise-specific requirements.

  3. In the shared responsibility model for PaaS, who is responsible for securing the runtime environment?

    Answer: The cloud provider

    In PaaS, the cloud provider manages and secures the runtime environment, middleware, and OS, while the customer is responsible for the application and data.

  4. A startup wants to build a mobile app backend without managing servers or infrastructure. They want automatic scaling and pay only for code execution time. Which model fits best?

    Answer: PaaS

    PaaS (which includes serverless/FaaS offerings) allows developers to deploy code without managing underlying infrastructure while providing automatic scaling.

  5. Which cloud model is MOST analogous to renting a fully furnished apartment where the landlord handles all maintenance?

    Answer: SaaS

    SaaS is like a fully furnished apartment because the provider manages everything (infrastructure, platform, application) and the user simply uses the service.

  6. A healthcare organization wants to use cloud-based email and collaboration tools without any IT infrastructure investment. Which model should they choose?

    Answer: SaaS

    SaaS delivers ready-to-use applications over the internet, making it ideal for email and collaboration tools without any infrastructure investment.

  7. Which of the following BEST describes the elasticity benefit in IaaS cloud computing?

    Answer: Dynamic scaling of compute resources based on demand

    Elasticity in IaaS refers to the ability to dynamically scale compute resources up or down based on workload demand, optimizing cost and performance.