Final answer:
Without specific IP addresses, we cannot determine if the two /26 IP addresses share the same network ID; it depends on the initial bits of the addresses.
Step-by-step explanation:
The statement 'The following two classless IP addresses have the same network ID: /26 and /26?' cannot be determined as true or false without knowing the specific IP addresses.
The /26 refers to the subnet mask, indicating that the first 26 bits are used for the network ID and the remaining bits are used for host addresses.
If the initial bits of the two addresses are the same, then the statement is true; they would share the same network ID. However, if the initial bits differ, the statement is false, as they would have different network IDs.