Certified Kubernetes Administrator (CKA) Practice Test

The command that provides a detailed explanation of a specific deployment's strategy in YAML format is the one that uses the `explain` verb. Specifically, `kubectl explain deploy.strategy` will output detailed information about the deployment's strategy fields, including their types, descriptions, and the expected behavior of each field.

This command is particularly useful for understanding the structure and purpose of the various elements in a Kubernetes resource definition, as it taps into the Kubernetes API documentation. The `explain` command serves as a reference for users who may be unfamiliar with specific configurations and need clarity on how to properly use them or what values are appropriate.

The other options do not function as intended for retrieving rich descriptions in YAML format about the strategy of a deployment. For example, the `display`, `describe`, and `info` commands do not accurately convey the focus on structural and typographical detail that `explain` provides. Instead, those commands either do not exist in that context or serve different purposes, such as providing general information or event details without the in-depth schema reference that `explain` offers.