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Difficulty: EasyPlatform as a Service (PaaS)

A company plans to deploy a web application to Azure. The company decides to use a Platform as a Service (PaaS) model instead of an Infrastructure as a Service (IaaS) model. Which of the following is a key characteristic of this PaaS deployment?

  1. The cloud provider automatically manages and patches the underlying operating system.Answer
  2. B
    The customer retains full administrative control over the guest operating system.
  3. C
    The customer is responsible for applying security updates to the web server's operating system.
  4. D
    The cloud provider delivers a fully managed end-user software application such as email.

Answer

The cloud provider automatically manages and patches the underlying operating system.
In a Platform as a Service (PaaS) model, the cloud provider manages the hardware, virtualization, and the operating system. Consequently, the provider automatically handles operating system patching and updates. This allows the customer to focus purely on deploying their application code and configuring application settings.

Step-by-Step Solution

1
Analyze the differences between the Infrastructure as a Service (IaaS) and Platform as a Service (PaaS) models.
PaaS abstracts the virtual machine and operating system layer from the customer.
This determines who is responsible for managing host software components.
2
Determine which management responsibility shifts to the provider in PaaS.
The cloud provider manages and updates the operating system.
Under the shared responsibility model, OS maintenance is handled by the provider in a PaaS model.

Key Concept

Platform as a Service (PaaS) Shared Responsibility
Estimated Time:45s
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Topics

Platform as a Service (PaaS)

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