What is an elastic IP?

• A. An Internet routable address
• B. A private IP address inside a private network
• C. A dynamic local IP address assigned by DHCP
• D. An internal gateway IP address

Answer: (A)

An elastic IP is a publicly routable IP address that you allocate to your cloud account and can attach to or detach from different instances. It gives you a stable, internet-accessible address for a service, so even if you stop or replace the underlying instance, you can remap the same IP to the new one. It is not a private IP inside a private network, it’s not dynamically assigned by DHCP, and it isn’t an internal gateway address. You typically pay attention to it when you need a persistent public endpoint.