The cloud administration team is reviewing an AWS deployment that was done using CloudFormation. The deployment includes six FortiGate instances that required custom configuration changes after being deployed. The team notices that unwanted traffic is reaching some of the FortiGate instances because the template is missing a security group. To resolve this issue, the team decides to update the JSON template with the missing security group and then apply the updated template directly, without using a change set. What is the result of following this approach? (Choose one answer)

• A. The update is applied, and the security group is added to all instances without interruption.
• B. Some of the FortiGate instances may be deleted and replaced with new copies.
• C. If new FortiGate instances are deployed later they will include the updated changes.
• D. CloudFormation rejects the update and warns that a new full stack is required.

Correct Answer: B

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