What happens when a Reserved Public IP is unassigned from an instance?

When a Reserved Public IP is unassigned from an instance, it can indeed be immediately reassigned to another instance. Reserved Public IPs are designed for situations where a static IP is needed over a longer period, allowing you to maintain a consistent address for your services even if you need to move the IP between different instances. This feature is particularly useful for applications that require a stable endpoint for clients or other services.

The mechanism of immediate reassignment allows for flexibility and operational efficiency, as it enables users to reallocate their reserved IPs dependent on their workload demands without losing the address or needing to wait for it to become available again. In contrast, other choices depict scenarios that do not accurately represent the nature of Reserved Public IPs.