Under the AWS shared responsibility model, for which of the following is the customer responsible for applying operating system updates and security patches?
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Correct answer: Amazon EC2 instances.
Why this is the answer
The customer is responsible for applying operating system updates and security patches for Amazon EC2 instances because EC2 is an Infrastructure as a Service (IaaS) offering. With IaaS, AWS manages the underlying hardware, virtualization, networking, and facilities, but the customer is responsible for the operating system, applications, data, and security configuration of their EC2 instances. Amazon DynamoDB and Amazon S3 are Platform as a Service (PaaS) or Software as a Service (SaaS) offerings, where AWS manages the operating system and underlying infrastructure. Amazon RDS is a managed database service (PaaS), meaning AWS handles the operating system and database patching.
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