Cisco Certified Network Associate (CCNA) Practice Exam

What does the 'Outside global' NAT term refer to?

1. The private IP address of a device on a local network

2. The public IP address visible on a local network

3. The public IP address of a remote network

4. The private IP address assigned to a local device

The correct answer is: The public IP address of a remote network

The term 'Outside global' in the context of Network Address Translation (NAT) refers specifically to the public IP address of a remote network. In NAT terminology, the classification of addressing is based on two criteria: whether the address is public or private and whether it is associated with the local or remote network. In this context, the 'outside global' address is significant because it enables communication with external networks through the use of a public address that is recognized globally on the Internet. This concept becomes particularly important when understanding how NAT maps private IP addresses (which are not routable on the Internet) to a public IP address for the purposes of external communication. The other options describe either private IP addresses or address types that do not fit the definition of 'outside global', which is specifically focused on the public addressing as seen on external networks.