Who actually understands how Azure Deployment Slots fundamentally eliminate downtime by allowing you to validate app changes in a live environment before swapping them into production? Furthermore, these unique instances of your App Service allow for seamless testing with actual traffic without affecting the primary site’s performance. Why does the ability to perform an instant rollback remain the most critical safety net for engineering teams during high-stakes deployments? How do you effectively manage specific configuration settings that must remain "sticky" to a slot during a swap?