Options
collision and broadcast domain
localboyy
Registered Users Posts: 5 ■□□□□□□□□□
in CCNA & CCENT
Hello everybody
I have a question about collision and broadcast domains
http://i54.tinypic.com/2im3n08.jpg
How many collision and how many broadcast domains are on picture?
2 broadcast and 9 collision domains?
Best regards,
I have a question about collision and broadcast domains
http://i54.tinypic.com/2im3n08.jpg
How many collision and how many broadcast domains are on picture?
2 broadcast and 9 collision domains?
Best regards,
Comments
-
OptionsWillaynto Member Posts: 15 ■□□□□□□□□□[EMAIL="http://img33.imageshack.us/i/2im3n08.jpg/"]http://img33.imageshack.us/i/2im3n08.jpg/[/EMAIL]
2 broadcast and 7 coallison -
Optionslocalboyy Registered Users Posts: 5 ■□□□□□□□□□Hello everybody
I have a question about collision and broadcast domains
http://i54.tinypic.com/2im3n08.jpg
How many collision and how many broadcast domains are on picture?
2 broadcast and 9 collision domains?
Best regards,
Are you 100% sure ?
Thanks -
Optionsdirtyharry Member Posts: 72 ■■□□□□□□□□
The router stops broadcasts from going back and forth between the LANs and makes two broadcast domains -one on each side. -
Optionslocalboyy Registered Users Posts: 5 ■□□□□□□□□□Same question
http://i1080.photobucket.com/albums/j332/_maker/ScreenShot014.jpg
I got it how routers, switches and hubs make collision/broadcast domains. But what about bridge?
Can someone tell me how many collision and how many broadcast domains are on the picture and explain it a bit, please?
I think it's 2 broadcast and 11 collision domains but not sure.
P.S
another question,
http://i1080.photobucket.com/albums/j332/_maker/howmanynetworks.jpg
how many networks are there on the picture?
Best regards, -
OptionsSteveO86 Member Posts: 1,423Same question
http://i1080.photobucket.com/albums/j332/_maker/ScreenShot014.jpg
I got it how routers, switches and hubs make collision/broadcast domains. But what about bridge?
Can someone tell me how many collision and how many broadcast domains are on the picture and explain it a bit, please?
I think it's 2 broadcast and 11 collision domains but not sure.
P.S
another question,
http://i1080.photobucket.com/albums/j332/_maker/howmanynetworks.jpg
how many networks are there on the picture?
Best regards,
Routers (At layer 3 of the OSI Model) create broadcast domain (Because broadcast are not forwarded by default. A broadcast will commonly be ARP requests or DHCP requests, or many other things), so if you have 1 router connected to 2 networks you have 2 broadcast domains.
Collisions domains are at layer 2 of the OSI model.
A collision is when 2 networked devices attempt to transmit data at the same time using the same medium, such as when a device is connected to a hub (shared medium) or a wireless AP, devices must first listen for other data being transmitted if it doesn't hear anything it transmits (sometimes that doesn't work and we have collisions, data gets corrupt and both devices back off for a random amount of time).
Every port on a switch/bridge is it's own collision domain. So if I have a single switch connected to 7 PC's I have 7 collision domains.
Bridge are essentially the same thing as a switch. Switches just have more physical interfaces.
If I have 1 Switch, 5 PC's, 1 router I have 6 Collision domains (One for each PC, and another for the link to the router) and 1 broadcast domain. (because it is one network.)
Checking out CSMA/CD (Wired LAN) for CSMA/CA (WLAN), may provide addition details that may help you.My Networking blog
Latest blog post: Let's review EIGRP Named Mode
Currently Studying: CCNP: Wireless - IUWMS -
Optionslocalboyy Registered Users Posts: 5 ■□□□□□□□□□Thank you for detailed explanation and advice! I was just wondering about the bridge
So, it's 2 broadcast and 11 collision domains ?
What about other picture? -
OptionsSteveO86 Member Posts: 1,423Thank you for detailed explanation and advice!
No problem.I was just wondering about the bridgeBridge are essentially the same thing as a switch. Switches just have more physical interfaces.
Same as a switch they work at layer 2 so the provide addition collision domains. They will forward broadcasts so they do not create broadcast domains.So, it's 2 broadcast and 11 collision domains ?
Correct.What about other picture?
Not to sound mean but you tell what's in the that picture. (Practice makes perfect and it looks like you a good grasp on the concept already.) Trust me the more you do this the easier it will be.My Networking blog
Latest blog post: Let's review EIGRP Named Mode
Currently Studying: CCNP: Wireless - IUWMS -
Optionsgroxer Registered Users Posts: 3 ■□□□□□□□□□Finally got the collision and broadcast. But what about this ?
http://i1080.photobucket.com/albums/j332/_maker/howmanynetworks.jpg
It's 4 networks? -
Optionsokplaya Member Posts: 199Finally got the collision and broadcast. But what about this ?
http://i1080.photobucket.com/albums/j332/_maker/howmanynetworks.jpg
It's 4 networks?
Yes.
A typical address scheme for that kind of network is two /30's for the Serial links and a /24 for each LAN. -
Optionsgroxer Registered Users Posts: 3 ■□□□□□□□□□Yes.
A typical address scheme for that kind of network is two /30's for the Serial links and a /24 for each LAN.
Thanks!
Do you maybe know where could I find examples like this ? This is from CISCO or? -
Optionsokplaya Member Posts: 199For free, not really sure off hand. You could google "ccent practice exam" maybe?
If you are studying for ccent/ccna then the official certification guide has a bunch of information to help you understand these concepts. In addition, there is a practice test to further reinforce these sorts of concepts. -
Optionsgroxer Registered Users Posts: 3 ■□□□□□□□□□For free, not really sure off hand. You could google "ccent practice exam" maybe?
If you are studying for ccent/ccna then the official certification guide has a bunch of information to help you understand these concepts. In addition, there is a practice test to further reinforce these sorts of concepts.
At which chapter or exact part of CCNA could it be found ? This thing with collision and broadcast domains, and networks -
Optionsokplaya Member Posts: 199Not really sure. I'd imagine it will be in the first several chapters.
Oh, a good resource for training that hardly gets mentioned is youtube. You can find a wealth of tutorials on there.