In an IaaS cloud, what is a common method for provisioning new computing instances with an operating system and software?

Question

Options

• AEach new instance is connected to the installation media of a Linux distribution and provides
• BEach new instance is created based on an image file that contains the operating system as well as
• CEach new instance is a clone of another currently running instance that includes all the software,
• DEach new instance is connected via a VPN with the computer that started the provisioning and
• EEach new instance contains a minimal live system running from a virtual CD as the basis from

• A
  6% (3)
• B
  76% (38)
• C
  2% (1)
• D
  12% (6)
• E
  4% (2)

Explanation

In an IaaS cloud, the most common method for provisioning new computing instances is to use an image file that contains a pre-installed operating system and software. This image file is also known as a machine image, a virtual appliance, or a template. The image file can be customized for a specific purpose, such as a web server, a database server, or a development environment. The image file can be stored in a repository or a library that is accessible by the cloud provider or the user. When a new instance is requested, the cloud provider copies the image file to a virtual disk and attaches it to the instance. The instance then boots from the virtual disk and runs the operating system and software from the image file. This method is faster and more efficient than installing the operating system and software from scratch for each new instance. It also ensures consistency and reliability across multiple instances that use the same image file.

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