What type of server is used to hide the addresses of devices on the network from the internet?

• A. Firewall
• B. VPN Server
• C. Proxy Server
• D. DNS Server

Answer: (C)

The main idea is using an intermediary to conceal internal devices’ addresses from the outside. A proxy server sits between internal clients and the internet, so when a device requests something external, the proxy forwards the request and returns the response. External sites see only the proxy’s IP address, not the real addresses of the devices behind it. That masking is why a proxy is used to hide network addresses from the internet, and it can also provide benefits like caching and policy enforcement.

Firewalls filter and block traffic at the boundary but don’t necessarily mask internal IPs. VPN servers create secure tunnels for remote access and assign virtual addresses within the tunnel, which is about private connectivity rather than hiding internal devices from public networks. DNS servers translate domain names to IPs and don’t hide internal addresses at all.