AWS DevOps Engineer Professional Practice Test

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Which approach does AWS recommend for validating template syntax in CloudFormation?

Using CloudTrail logs
Deploying the template in a test environment
Executing the "cloudformation validate-template" command
Reviewing the template visually

The correct answer is: Executing the "cloudformation validate-template" command

Using the "cloudformation validate-template" command is the recommended approach by AWS for validating the syntax of CloudFormation templates. This command checks whether the template is formatted correctly and whether the resources specified within it are compatible with the current version of AWS CloudFormation. By running this command, users can catch potential errors and issues before attempting to deploy the template, thereby reducing the likelihood of encountering deployment failures due to syntax errors. This method is efficient as it provides immediate feedback on template validity without the need to deploy resources, which can save time and resources in development and testing workflows. Additionally, this command can be integrated into CI/CD pipelines, allowing for automated checks as part of the software development lifecycle, promoting a best practice of validating infrastructure as code early in the processes.