Which of the following is NOT a feature of AWS IAM?

The correct answer is the option that indicates "Encrypted storage of user data" is not a feature of AWS Identity and Access Management (IAM). AWS IAM is specifically designed to manage access to AWS resources by enabling you to create and manage AWS users, groups, permission roles, and policies for managing access to your AWS services and resources.

IAM allows for the creation of users and groups, granting permissions based on roles to offer temporary access, and implementing detailed access control policies. These features focus on authentication and authorization rather than the storage of user data itself. Although AWS does provide encryption capabilities across its services, particularly for data at rest and in transit, IAM itself does not handle any encrypted storage of user data directly; it deals with user identities and access permissions to resources.

In summary, while IAM plays a crucial role in managing who can access what in AWS, it does not provide any functionality regarding the encryption or storage of user data, which clarifies why that option is correct in this context.