According to the AWS shared responsibility model, which activities are the customer’s responsibility for security in the AWS Cloud?

Explanations:

Hardware maintenance is the responsibility of AWS as part of their infrastructure management.

Amazon EC2 operating system patching is the customer’s responsibility as part of managing the operating system on EC2 instances.

API access control for AWS resources is the customer’s responsibility to manage access permissions through AWS Identity and Access Management (IAM).

Configuration management of infrastructure devices (such as networking hardware) is handled by AWS as part of the underlying infrastructure.

Maintenance of an Availability Zone is the responsibility of AWS, including hardware and network infrastructure within the zone.