A recent advertisement campaign has increased traffic to an e-commerce application that is hosted within a public cloud environment. Customers are reporting that it takes too long to load their…

Changing the server template size to a larger option (vertical scaling) directly addresses high CPU and memory utilization on the existing server, providing more resources to handle increased traffic and improve application responsiveness, especially when an instance is a bottleneck.

Provisioning additional servers (horizontal scaling) is a good solution for distributed applications, but it might not immediately resolve a bottleneck on a single critical instance or component without proper load balancing and architectural design.

Adding only memory would not fully resolve the performance issue if CPU utilization is also high, and preconfigured template sizes often bundle CPU and memory upgrades together.

Changing a server's role from web to application is a functional configuration change and does not directly address existing resource utilization or improve performance.