A Company Has an Application Running on a Fleet of Microsoft

Multiple Choice

A company has an application running on a fleet of Microsoft Windows instances. Patches to the operating system need to be applied each month. AWS Systems Manager Patch Manager is used to apply the patches on a schedule. When the fleet is being patched, customers complain about delayed service responses. What can be done to ensure patches are deployed with MINIMAL customer impact?

A) Change the number of instances patched at any one time to 100%.
B) Create a snapshot of each server in the fleet using a Systems Manager Automation document before starting the patch process.
C) Configure the maintenance window to patch 10% of the instances in the patch group at a time.
D) Create a patched Amazon Machine Image (AMI) . Configure the maintenance window option to deploy the patched AMI on only 10% of the fleet at a time.