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  • Category: Networking (LAN)

    How many collision and broadcast domains ?

    Hi all,

    Let us consider One router is connected to one switch and switch is connected to one Hub.

    Switch -4 ports
    Hub-5ports.

    I am trying to get answer but ans was wrong.Could you please help me out in getting this solution .In meanwhile if i done i will share with you.

    Thanks in advance.

    Regards ,
    Annapurna.
  • #6948
    Hi Annapurna,

    I cant understand your thread over here. Can you please explain what you coming to ask here. Surely i will explain you and help you to solve your question.

  • #6966
    Here we need to find out how many collision and broadcast domains if switch is connected to router and that router is connected to switch.

  • #7580
    Hi Annupurna,
    There is only one Broadcastdomain. And for Collision domain.
    And as you said there are 4 ports in your switch if you use one port out of these four to connect with router then there will be 4 Collision domain but if you use any other uplink to connect switch and router to each other that will be the fifth port in Switch and you will have 5 collision domains.

  • #7643
    Hi punit,

    Notice one thing hub have only single collision domain . So it will share the collision domain with the switch port with which it is connected.

    So we will have 5 CD

    PLease correct me with explanation if I am Wrong.


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