The IT department of a retail company is preparing for a promotion that is expected to double the online store's traffic. To maintain their application's responsiveness during the increase in workload without manual intervention, which solution should the IT team employ?
Configure an initial template to spawn additional instances when thresholds are exceeded.
Set up a traffic distribution mechanism to ensure even load across the servers currently in operation.
Manually resize the current compute instances to the maximum expected capacity before the promotion starts.
Deploy a service to automatically manage the quantity of compute instances according to the real-time demand.