Which of the following firewalls hides or masquerades the private addresses of network hosts?
- Proxy server
- Host-based firewall
- Reverse proxy firewall
- Network address translation firewall
- Network layer firewall
| Explanation & Hint:
The firewall that hides or masquerades the private addresses of network hosts is the “Network Address Translation (NAT) firewall.” NAT firewalls are commonly used to allow multiple devices on a private network to share a single public IP address. It translates private (local) IP addresses to a single public IP address when outbound traffic leaves the network, and it reverses the translation when inbound traffic returns to the network, ensuring that internal IP addresses are hidden from the public internet. |