What will happen when the user logs in and attempts to view the AWS resources in the account?
All AWS services will be read-only access by default.
Access to all AWS resources will be denied.
Access to the AWS billing services will be allowed.
Access to AWS resources will be allowed through the AWS CLI.
Explanations:
AWS does not grant any default permissions to IAM users. They cannot access any AWS services unless specific permissions are granted through policies.
Without any IAM policies attached, the user will have no permissions and will be denied access to all AWS resources in the account.
Access to AWS billing services requires specific permissions, which are not granted by default. Therefore, the user will be denied access to billing information.
Access to AWS resources via the AWS CLI requires permissions to be defined in IAM policies. Without these policies, the user will not have access through the CLI either.
Based on what I know, the answer is:
Access to all AWS resources will be denied.