What are the destination prefixes for configuring default routes for IPv4 and IPv6 traffic?

The destination prefixes for configuring default routes are used to direct traffic to an unspecified destination when no more specific route exists in the routing table. For IPv4, the default route is represented by the prefix 0.0.0.0/0. This notation means that any IP address can match this route, effectively serving as a catch-all for all IPv4 traffic that does not have a more specific entry in the routing table.

Similarly, for IPv6, the equivalent default route is represented by the prefix ::/0. This notation serves the same purpose as the IPv4 default route, allowing any IPv6 address to match it, thereby routing any unspecified traffic towards this destination.

The combination of 0.0.0.0/0 for IPv4 and ::/0 for IPv6 makes option C the correct choice, as these prefixes are correctly defined for setting up default routes for both types of traffic. The other options either use incorrect prefixes for default routing or use prefixes that do not align with standard practices for defining default routes in their respective IP versions.