1. The ____ layer of the osi model performs end-to-end error control and end-to-end flow control.

2. The ____ layer is the osi layer that handles routing.

3. The ____ layer is the interface between network software and hardware.

4. The ____ layer forwards messages to their correct destinations.

5. The ____ is used to connect local area networks to wide area networks.

6. An arp broadcast is sent to the special mac address ________.