In routing, what does the destination 0.0.0.0 typically represent?

In routing, what does the destination 0.0.0.0 typically represent?

• A. Localhost
• B. Default Gateway
• C. Broadcast
• D. Subnet Router

Answer: (B)

In routing, 0.0.0.0 with a 0.0.0.0 mask designates the default route, a catch-all path for any destination not covered by more specific routes. This means when a packet’s destination isn’t found in the routing table, it’s forwarded to the next-hop defined as the default gateway. That gateway then handles delivering the packet toward its final network. The other options don’t fit because 127.0.0.1 is loopback to the local host, 255.255.255.255 is a broadcast address, and “subnet router” isn’t a standard address designation.

In routing, 0.0.0.0 with a 0.0.0.0 mask designates the default route, a catch-all path for any destination not covered by more specific routes. This means when a packet’s destination isn’t found in the routing table, it’s forwarded to the next-hop defined as the default gateway. That gateway then handles delivering the packet toward its final network. The other options don’t fit because 127.0.0.1 is loopback to the local host, 255.255.255.255 is a broadcast address, and “subnet router” isn’t a standard address designation.