Which of the following statements are true about the default route?

The default route can only be manually configured by the administrator.

If the destination address of a packet does not match any entry in the routing table, the packet is forwarded through the default route.

In a routing table, the route to 0.0.0.0 (with the mask being 0.0.0.0) is the default route.

The routing table of any router must contain the default route.