Which option best describes NAT in the context of a typical home or small office wireless network?

• A. NAT translates multiple private addresses to a single public address for outbound Internet access, providing address management.
• B. NAT increases the number of public IP addresses available to devices.
• C. NAT provides end-to-end encryption between hosts and destinations.
• D. NAT assigns DNS names to devices.

Answer: (A)

NAT in a home or small office network is about letting many devices share a single public IP. The router assigns private addresses to devices (like 192.168.1.x) and uses one public IP given by the ISP for Internet access. When a device sends out traffic, the router translates the private source address (and often the port) to the public IP (with a unique port) and tracks that mapping so responses are delivered back to the correct internal device. This setup provides effective address management and conserves public IPs, since many devices can access the Internet without each needing their own public address. NAT does not create more public IPs, nor does it provide encryption of traffic or DNS name assignment—encryption and DNS services are separate functions.