An ancillary 911 support app currently runs entirely in one Availability Zone. What should a Cloud Practitioner recommend for high availability?
Select an answer to reveal the explanation.
Short Explanation
One AZ for a 911-related helper app is like one bridge into town—when it is out, you are stuck. Spreading across multiple Availability Zones is the straightforward HA fix. Bigger boxes, one hard-coded host, or browser-only logic do not replace multi-AZ resilience.
Full Explanation
Single-AZ deployments concentrate risk: an AZ disruption can take the whole application offline. High-availability-sensitive workloads, including public-safety adjacent systems, should use multiple Availability Zones. Vertical scaling alone does not remove that AZ-level single point of failure. Removing load distribution or relying only on client-side code also fails to provide server-side HA across AZs.