Can a switching table in a virtual-circuit network have two entries with the same input port number With the same output port number With the same incoming VCls With the same outgoing VCls With the sa?

In a virtual-circuit network, a switching table can have multiple entries with the same input port number and the same output port number, as long as the virtual circuit identifiers (VCIs) differ. However, it cannot have multiple entries with the same incoming VCIs or the same outgoing VCIs for the same input-output port combination, as this would lead to ambiguity in routing the packets. Each entry must be uniquely identifiable to ensure proper handling of the data streams.