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Ethernet. Bus toplogy or star?

Posted on 2004-11-25
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Im taking some practice CCNA exams, and one of the questions was : "is  ethernet bus topology or star?"

I think it is bus correct?  Bus is when all hosts are connected (one collision domain one broadcast domain). And CDMA is used to prevent collisions. This is how ethernet was designed right?

Now the thing that is throwing me off, is switches.  Switches give point to point connections which allows hosts to communicate at the same time. And no CDMA is used.


Is ethernet bus topology when using a hub  and star toplogy when using a switch?  Or, does the switch simply just "cheat the system" by creating several collision domains...kind of fooling ethernet?

Thanks
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Question by:dissolved
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stevenlewis earned 2000 total points
ID: 12676329
actually ehternet can be either or
depends on the connection
when using a hub or switch it is star
see here
http://fcit.usf.edu/network/chap5/chap5.htm
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by:dissolved
ID: 12676452
gotcha. Bus is one cable for all hosts

star is a central unti (hub switch) that all hosts connect to
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