010-160 Question #101: Real Exam Question with Answer & Explanation

Question

Options

• AThe standard Linux installer has to be run through a remote console.
• BAfter buying a Linux distribution, its vendor delivers it to a cloud instance.
• CThe installation has to be prepared in a local virtual machine which is then copied to the cloud.
• DThe cloud hosting organization provides a set of pre-prepared images of popular Linux distributions.
• EA provider-specific configuration file describing the desired installation is uploaded to the cloud provider.

Explanation

In IaaS cloud environments, Linux instances are provisioned by supplying a provider-specific configuration file that declaratively describes the desired system, rather than performing any manual installation steps.

Common mistakes.

• A. IaaS abstracts the underlying hardware entirely, so running a manual Linux installer via remote console is not required or supported as a standard provisioning method.
• B. Linux distributions are open-source and are not sold by vendors who then deliver them to cloud instances; this describes neither how Linux licensing works nor how IaaS provisioning functions.
• C. Copying a local virtual machine to the cloud is a migration or import workflow, not the standard IaaS provisioning process for a new instance.
• D. While cloud providers maintain pre-prepared base images (e.g., AMIs in AWS), simply selecting an image describes only part of the process and does not capture the configuration-driven provisioning model that defines IaaS automation.

Concept tested. IaaS Linux instance provisioning via configuration files

Reference. https://cloudinit.readthedocs.io/en/latest/explanation/introduction.html

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