When will you incur costs with an Elastic IP address (EIP)?
A.
When an EIP is allocated.
B.
When it is allocated and associated with a running instance.
C.
When it is allocated and associated with a stopped instance.
D.
Costs are incurred regardless of whether the EIP is associated with a running instance.
Explanation:
You are allowed one EIP to be attached to a running instance at no charge. otherwise, it will
incur a small fee. in this case, the instance is stopped, and thus, the EIP will be billed at the
normal rate.
http://aws.amazon.com/ec2/pricing/