CompTIA A+ Core 1 (220-1201)NetworkingMedium
A home user wants a single gaming console to receive all inbound traffic from the internet without configuring individual port forwarding rules, while keeping the rest of the network protected by the firewall. Which of the following SOHO router features should be configured?
- AUPnP
- BQoS
- CNAT
- DDMZ
Show answer & explanationAnswer & explanation
Correct answer: D. DMZ
Placing a device in the DMZ (Demilitarized Zone) forwards all unsolicited inbound traffic to that single device, bypassing the need for individual port forwarding rules, while the rest of the internal network remains behind the firewall. NAT translates addresses but does not expose all ports, QoS manages bandwidth priority, and UPnP allows automatic port opening but not full exposure of all ports.
Why the other options are wrong
- A. UPnP allows applications to dynamically open specific ports, not all ports.
- B. QoS prioritizes bandwidth for certain traffic types, not port exposure.
- C. NAT translates private to public IP addresses but does not expose all ports by itself.
DMZ (SOHO Router)
A DMZ host setting on a SOHO router forwards all incoming, unsolicited internet traffic to one specified internal device.
- Exposes all ports to one device
- Reduces need for manual port forwarding
- Increases risk to the exposed device
Memory trick: DMZ = 'Dump My Zone' traffic onto one device.