What are customer security responsibilities according to the AWS shared responsibility model?

The correct answer focuses on the customer's responsibility to manage account credentials and policies. In the AWS shared responsibility model, there is a clear division of responsibilities between AWS and the customer. AWS handles the security of the cloud infrastructure itself, including the physical security of data centers and maintenance of hardware. In contrast, customers are responsible for securing their own data, managing user permissions, and implementing security policies.

This responsibility includes creating and enforcing policies related to access control, ensuring that only authorized users have the appropriate level of access to resources, and managing credentials to prevent unauthorized access. Proper credential management involves practices such as regularly updating passwords, utilizing multi-factor authentication, and monitoring for any unusual access patterns, which are crucial in protecting customer data and maintaining a secure environment.

The other options address responsibilities that fall under AWS's purview. Ensuring physical security of the data centers, repairing network issues, and maintaining server hardware are all tasks that AWS is responsible for in managing the underlying infrastructure. This division of responsibilities highlights the importance for customers to be proactive in securing their applications and data within the AWS cloud.