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Collision Domains and Broadcast domains??
I needed a little more help finding out the number of how many Collision and Broadcast domains are there. I have a question sheet and they show a hub with 4 computers pluged into it, how would you decide the number? Also theres a picture of a hub and router with three computer pluged into each of them, how would you determin the number? Thanks
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cacharo
Member Posts: 361
Rehnbo82 wrote:I needed a little more help finding out the number of how many Collision and Broadcast domains are there. I have a question sheet and they show a hub with 4 computers pluged into it, how would you decide the number? Also theres a picture of a hub and router with three computer pluged into each of them, how would you determin the number? Thanks
Know that:
A hub redistributes all traffic received to all connected hosts. (Collisions will occur)
A switch will break up collision domain, but will redistribute all broadcast traffic to all connected hosts. (No collisions, but yes to broadcasts)
A router will not forward broadcasts.
To answer you question everything "beneath" a router is on the same broadcast domain and everything "beneath" 1 port on a switch is on the same collision domain. So if all you have is one hub and 4 computers connected you have one collision domain. But if you have 1 switch connected to 4 hubs with 4 connected computers you have 4 collision domains.
http://en.wikipedia.org/wiki/Collision_domain
http://en.wikipedia.org/wiki/Broadcast_domainTreat people as if they were what they ought to be, and you help them become what they are capable of being.