Exam AWS Certified SysOps Administrator - Associate topic 1 question 36 discussion

Converting the Python script to an AWS Lambda function and using an Amazon EventBridge (Amazon CloudWatch Events) rule to invoke the function every night is a serverless and fully managed solution, which means that the administrator does not have to worry about managing the underlying infrastructure or scaling. AWS Lambda allows for easy deployment, scaling, and management of code in response to events. EventBridge (CloudWatch Events) provides a reliable way to schedule events and to invoke AWS services on a schedule.

Def. A as it's asks for 'Operationally efficient' method.

the reason for not C : "schedule the instance to start and stop every night." -> restart instance every day sounds non-sense.

Everyone seems to choose A. without a second thought, and there is a default metric for Lambda invocation errors. However, this doesn't deal with the alarms that Lambda may generate while running. Dealing with this requires CloudWatch logs to use patterns such as ?ERROR to parse the log files and generate an alert. Since the question doesn't seem that exotic or specific, "A." is probably the right choice, but this is a tricky question. If you think it isn't, read: https://aws.amazon.com/blogs/mt/get-notified-specific-lambda-function-error-patterns-using-cloudwatch/

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Ans: A

A. Lambda is good enough.

Here a lambda function will be the most efficient solution.

Question asks for 'the MOST operationally efficient solution' Deploying a Python script to an EC2 instance for execution would not be efficient