You have an Azure Virtual Desktop deployment that contains an Azure compute gallery. The Azure compute gallery contains an image definition named…

By default, when deploying a virtual machine from an Azure Compute Gallery image definition without specifying a version, Azure uses the version with the highest version number (e.g., 1.2.0). The goal is to make version 1.1.0 the default. The Azure Compute Gallery provides an "Exclude from latest" property for image versions. By setting this property on version 1.2.0, you remove it from consideration when determining the "latest" version. Consequently, version 1.1.0 becomes the highest-numbered version that is not excluded, making it the new default for deployments.

A. Excluding version 1.0.0 would have no effect, as 1.2.0 would remain the highest, non-excluded version and thus the default.

C. Applying a resource lock prevents accidental deletion or modification but does not influence the version selection logic for deployments.

D. Tags are key-value pairs used for metadata and organization; they do not control which image version is used as the default.

1. Microsoft Learn. (2023). Store and share images in an Azure Compute Gallery.

Reference: In the "Image versions" section

it states

"You can also exclude a specific version from being used as the latest image version by using the Exclude from latest flag." This directly supports the mechanism used in the correct answer.

2. Microsoft Learn. (2023). Create an image definition and an image version.

Reference: In the "Create an image version" section

the parameter exclude-from-latest is described as: "Allows you to exclude this image version from being used as the latest version of the image definition." This confirms that excluding a higher version makes a lower one the "latest".

3. Microsoft Learn. (2023). Azure CLI - az sig image-version create.

Reference: The documentation for the --exclude-from-latest parameter states: "Exclude this image version from being considered as the latest version of the image definition." This shows the specific command-line tool and parameter for implementing the solution.