You are an AWS consultant of a certain company. There is a concern that web applications` performance must be monitored because the festive season is approaching, and there might be high spikes in traffic to your applications. So, you need an effective way to respond to this. You want to test the CloudWatch alarm that you want to implement in this use case. Which is the cost-effective way to achieve this test?

Answer options:

A.Do a temporary change to the alarm.
B.Use AWS CLI Dry run.
C.Use AWS CLI set-alarm-state command.
D.Set an EC2 fleet and increase the request rate to the web application until the alarm state is reached.

Correct Answer: C
AWS mentions:
The SetAlarmState temporarily sets the state of an alarm for testing goals
Option B is incorrect because a dry run helps if you have the required permission for an action without making the actual request.
Options A and D are distractors. They do not, in any way, correlate with the requirement of the question, which needs to test the alarm.
https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/set-alarm-state.html