Google Cloud Certified Associate Cloud Engineer Practice 2025 - Free Cloud Engineer Practice Questions and Study Guide

The correct command to deploy an App Engine application using the Go runtime with the Standard Environment is "gcloud app deploy app.yaml." This command specifically targets the App Engine service to deploy the application defined in the specified YAML configuration file, which includes details about the application settings, runtime, environment, and other configurations needed for deployment.

The command ensures that the application is packaged appropriately for the App Engine standard environment and deploys it to the specified project on Google Cloud. Using the "deploy" action is a standard practice when preparing to put a new version of an application into production or to update an existing application with new changes.

The other options either use incorrect command structures or erroneous subcommands that are not recognized by Google Cloud's gcloud tool for deploying App Engine applications. For effective deployment, it is crucial to use the correct command syntax, and "gcloud app deploy" fulfills that requirement.