Can a routing table in a datagram network have two entries with the same destination address? Explain.

No, a routing table in a datagram network cannot have two entries with the same destination address. This is because a router that is attempting to forward an IP datagram looks up the destination address in the routing table and attempts to send the datagram to the single interface that is associated with that address. Having two entries for the same destination address would create a conflict, and the router would not be able to determine which interface to use.