Final answer:
To use an AWS Lambda function to respond to Amazon CloudWatch alarms, create a Lambda function, configure a CloudWatch alarm for your specific metrics, and then set the Lambda function as the target action for the alarm's state changes.
Step-by-step explanation:
To use an AWS Lambda function to respond to Amazon CloudWatch alarms, you should follow these general steps:
Configure an Amazon CloudWatch alarm to monitor a specific metric or set of metrics that, when breached, should trigger the Lambda function.
Specify the Lambda function as the target action for the CloudWatch alarm. This is done by setting the Lambda function as the destination for the alarm's state change actions.
Configure the alarm to invoke the Lambda function by selecting it in the 'Actions' section when setting up the alarm.
This integration allows automatic responses to operationally significant events, thus increasing the efficiency of system monitoring and incident management.