You work on two different Google Cloud projects: 'dev-project' and 'prod-project'. You frequently switch between them and need to use different accounts and default compute zones for each.

What is the MOST efficient way to manage these different settings in the Cloud SDK?

A gcloud configuration is a named set of SDK properties. These properties include the active account, default project, and default compute zone/region. By creating multiple configurations (e.g., one for dev, one for prod), you can quickly switch contexts using `gcloud config configurations activate [NAME]` without having to re-authenticate or manually change individual settings.