Doesn’t the choice of service change responsibilities? Infrastructure as a Services places the patching of the O/S on the user but Platform as a Service makes patching the O/S an AWS responsibility. Software as a Service puts all Infrastructure and platform responsibilities on AWS. Shouldn’t the services in use be specified on any question about "Shared Responsibility"?
Yes absolutely, shared responsibility changes based on the type of platform you choose. I don’t remember seeing a question about it in the exam, however the questions are very specific, either the service will specified or you find a hint in the question about which platform it belongs to