There are no limits on the number of tokens that may circulate.
It signals to the rest of the network to listen for traffic.
It signals to the rest of the network that the MAU is receiving an excessive number of errors.
It enables multiple nodes on the network to transmit data simultaneously.
It enables one node on the network to transmit data at any one time.
It depends on the number of nodes on the network.
It depends on the location of the nodes on the network.
Performance over the entire network would suffer slightly.
The failed node would be affected, but other nodes would be fine.
Data would no longer be transmitted to or from any nodes.
Errors would be broadcast to every node.
A node on a ring network can transmit at any time without restriction.
Here's an interesting quiz for you.