Ethernet. Bus toplogy or star?

Posted on 2004-11-25
Last Modified: 2012-05-05
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?

Question by:dissolved
    LVL 41

    Accepted Solution

    actually ehternet can be either or
    depends on the connection
    when using a hub or switch it is star
    see here

    Author Comment

    gotcha. Bus is one cable for all hosts

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

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