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How many broadcast domains? Diagram Question CCNA

http://danscourses.com – What is a broadcast domain? This tutorial answers what is a broadcast domain, and how to discern how many broadcast domains are in the network diagrams? The tutorial has diagram examples and answers. Cisco CCNA

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49 thoughts on “How many broadcast domains? Diagram Question CCNA”

  • could someone please tell me witch tool has @danscourses used to make this slide? Thanks

  • Your explanation of broadcast domains far exceeds anything I've read in my books, thank you so much sir!

  • thank you so much this is exactly what I needed 7 yrs later and your still making lives better!

  • Thank you, thank you, thank you
    7:07 minutes and you have explained it perfectly.
    So simply and so clear.
    Bookmarked this page to share with friends.

  • I took over for a guy at a school district who had ONE VLAN and over 3000 devices on the network. smh

  • How about on a switch which has many different VLANS, different VLANS means different network. So for example. if we have a 5 different VLAN, can we count it as 5 broadcast domain also?

  • This video is 7 minutes 7 seconds and the number of broadcast domains in the question is also 7, thanks for the great explanation, cheers.

  • The moment you said a router contains broadcast domains is when it clicked for me! Thanks!

  • Well done! You are a top 10 networking teacher on YouTube. You stand level with Keith Barker.

  • thanks sir
    one question: do we have broadcast between two router?
    because router discard the broadcast packet.

  • Can help me to solve my assignment please 🙏🏻🙏🏻🙏🏻🙏🏻???

  • Thank you for this, this was really helpful.

  • I just want to say thank you for ALL your hard work and the time you take to make this amazingly helpful videos. Gracias!!!

  • Wow! Why doesn't this vid have more views? I had to go through so many videos with convoluted explanations that were making no sense until I found this wonderfully simple and concise one. Thank you for taking the time to make this, I appreciate you!

  • Great instructor. Very simple and get to the point..

  • I have a question about the diagram which showed up at 5:57. Based on the definition, all ports on a hub or a switch are by default in the same broadcast domain. All ports on a router are in the different broadcast domains and routers don’t forward broadcasts from one broadcast domain to another. I feel there should be three broadcast domain in between the switch and three other routers instead of 1. Could you please explain this part a bit more?

  • He made this video in 2011 but still one of the best. Thanks a lot, Dan, You are a great teacher.

  • Simply putting:- broadcast and collision occurres only in LAN side not in WAN..now switch only Broadcast once to learn the macs from everyone port so it has one broadcast domain but it will send traffic only to the ports which are really in use so there will be same number of collision domain for each active port…where hub works in layer 1 …and has no memory so it sends the traffic to all ports including the source port so one broadcast and one collision because it has no memory it will send every packet to everyone.

  • what about if we take the first picture were their was 2 switch only. If we assume we only look at 1 switch, etc to left: If you have a server and a client PC on 2 subnets and their interfaces is connected to the switch. Is it still 1 broadcast domain or 2 ?

  • That is awesome, thank you.  Sharing with my classmates.

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