A web application’s performance has been degrading.Historically, the application has had highly-variable workloads, but lately, there has been a steady growth in traffic as the result of a new product launch.After reviewing several Amazon CloudWatch metrics, it is discovered that over the last two weeks the balance of CPU credits has dropped to zero several times.
Which solutions will improve performance?
(Choose two.)
Begin using the T2 instance type
Purchase more CPU credits for the existing instance
Increase the size of the current instance type
Configure a CloudWatch alarm on the CPU credits metric
Explanations:
T2 instance types are burstable like T3 instances but older, and would not resolve CPU credit depletion.
AWS does not offer direct purchase of CPU credits for T instances; credits are accrued through reduced usage.
Increasing the instance size provides more baseline CPU, which reduces reliance on CPU credits.
A CloudWatch alarm on CPU credits enables proactive management, alerting on low credits before depletion.