Rollback to version 2 of deployment config php.

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Multiple Choice

Rollback to version 2 of deployment config php.

Explanation:
Rolling back a deploymentConfig to a specific previous revision uses the oc rollback command with the resource identified and the target version specified. The correct form is to rollback the deploymentConfig named php to version 2 by calling oc rollback dc/php --to-version=2. This uses the deploymentConfig resource type (dc) and the integer revision number, which OpenShift treats as the exact rollback point. Version numbers are integers representing specific revisions, so a version like 2.0 isn’t valid. Specifying the resource as just php omits the resource type, making the command ambiguous for OpenShift to operate on. And rolling back to version 1 would revert to a different revision than requested.

Rolling back a deploymentConfig to a specific previous revision uses the oc rollback command with the resource identified and the target version specified. The correct form is to rollback the deploymentConfig named php to version 2 by calling oc rollback dc/php --to-version=2. This uses the deploymentConfig resource type (dc) and the integer revision number, which OpenShift treats as the exact rollback point.

Version numbers are integers representing specific revisions, so a version like 2.0 isn’t valid. Specifying the resource as just php omits the resource type, making the command ambiguous for OpenShift to operate on. And rolling back to version 1 would revert to a different revision than requested.

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