In spite
of the advantage of the extensibility of a Bus topology,
there are still disadvantages and problems. Which problems
have to be faced in a bus-topology ?
We
provide a set of different answers and use the same
animation to explain why the answers are correct or
wrong.
Is there any correct answer in the following choices?
a)
The protocol is complex because messages cannot be
sent to a specific computer. They can only be sent
to several computers at once.
Reminder:
principle of Bus-topology
in comparison to point to point connection
Answer: Indeed
messages are not sent explicitely to a target receiver. They
are broadcasted over the bus. As part of the Ethernet-Protocol
the messages contains header information, which explicitely
indicates the receiver machine.