What is the default gateway for the router?

• A. The router
• B. The WUG server
• C. The switch
• D. The ADNS

Answer: (B)

In IP networking, a default gateway is the device that a router uses to send traffic headed to destinations outside its own local subnet. The router needs a next-hop for any packet whose destination isn’t on its directly connected networks, so it relies on a default route to reach the broader network, like the internet.

In this setup, the WUG server is configured as that upstream device. All traffic leaving the router for destinations beyond its local network gets forwarded to the WUG server first, which then handles the path onward. That makes the WUG server the router’s default gateway.

The other options don’t fit because a switch operates at layer 2 and doesn’t route traffic to different networks, and a DNS server (ADNS) handles name resolution, not general routing. The router itself isn’t its own gateway for outbound traffic unless it’s set up in a special loopback or management scenario, which isn’t implied here.