What is the role of a default route, and how is it represented in a routing table?

• A. A default route directs all packets to a single next-hop regardless of destination.
• B. A default route directs packets with no specific match; IPv4 uses 0.0.0.0/0 to represent the default.
• C. Default routes are used only for multicast traffic.
• D. Default routes require DNS for resolution.

Answer: (B)