PasS 概念考题

[honeymoose]

NOTE: Each correct selection is worth one point.

Hot Area:

Correct Answer:

Box 1: No -

A PaaS solution does not provide access to the operating system. The Azure Web Apps service provides an environment for you to host your web applications.

Behind the scenes, the web apps are hosted on virtual machines running IIS. However, you have no direct access to the virtual machine, the operating system or

IIS.

Box 2: Yes -

A PaaS solution that hosts web apps in Azure does provide the ability to scale the platform automatically. This is known as autoscaling. Behind the scenes, the web apps are hosted on virtual machines running IIS. Autoscaling means adding more load balanced virtual machines to host the web apps.

Box 3: Yes -

PaaS provides a framework that developers can build upon to develop or customize cloud-based applications. PaaS development tools can cut the time it takes to code new apps with pre-coded application components built into the platform, such as workflow, directory services, security features, search and so on.

References:

What is platform as a service (PaaS)? | Microsoft Azure

[honeymoose]

PaaS 更像是一个脚手架。

通过这个脚手架我们来首先我们自己需要的应用。

第一个问题，PasS 可以完全对操作系统进行控制，显然是错误的。

例如，安装了 Azure 数据库后，你也没有办法可以修改安装这个数据库的操作系统，只有 Azure 可以对数据库的操作系统进行修改。