A http://docs.aws.amazon.com/IAM/latest/UserGuide/id_users.html
Each IAM user is associated with one and only one AWS account. Because users are defined within your AWS account, they don’t need to have a payment method on file with AWS. Any AWS activity performed by users in your account is billed to your account.
Yes, but I’m not sure if it was possible when they created the test questions as this was enabled in Jan ’15
https://aws.amazon.com/blogs/aws/new-cross-account-access-in-the-aws-management-console/
Access is different from association. So Option is A. No
Each IAM user is associated with one and only one AWS account. Answer: A
Yes via federation accessing multiple accounts using the same User
A is the right answer.
Accessing using federation is not the same as associating a user with multiple accounts.
A
http://docs.aws.amazon.com/IAM/latest/UserGuide/id_users.html
Each IAM user is associated with one and only one AWS account. Because users are defined within your AWS account, they don’t need to have a payment method on file with AWS. Any AWS activity performed by users in your account is billed to your account.
Whats the difference between access and association?
A.
No