What is CSMA/CD & CSMA/CA? Have you ever wondered how computers send data on a network without interfering with the data from other computers? This is an animated video explaining what carrier sense multiple access with collision detection and collision avoidance are.


    • Adarsha Poudel
      Adarsha Poudel

      This video is very helpful

      about 4 days ago
    • Shivani Rai
      Shivani Rai

      very well explained sir

      about 18 days ago
    • Mmushroomer

      Great video! Thank you so much.
      'R' in RTS/CTS protocol stands for request, not ready tho.

      about 18 days ago
    • Arafat Mondal
      Arafat Mondal

      Nice explanation.

      about 19 days ago
    • Alif Ruslan
      Alif Ruslan

      Thank you so much

      about 28 days ago
    • Azazel

      Thanks. Please keep making such videos .

      about 28 days ago
    • Ben Gilhooley
      Ben Gilhooley

      Thank you!

      about 1 month ago
    • Wesley Kim
      Wesley Kim

      god video

      about 1 month ago
    • Ivan Dukov
      Ivan Dukov

      nai-golemiq v youtube, obicham te bratle

      about 1 month ago
    • Sahana Nayak
      Sahana Nayak

      Thanks for the explanation. Would it be possible to share the source code of the animation that you have done in this video please.

      about 1 month ago
    • soundari

      Pls upload firewalls concept and hardware, software trouble shooting videos

      about 1 month ago
    • anna so
      anna so

      Thank you. 👏❤

      about 1 month ago
    • Chris McQueen
      Chris McQueen

      Pretty amazing explanation! Thanks so much!

      about 1 month ago
    • Programmers Gateway
      Programmers Gateway

      Your channel is the best !!!
      Keep providing these kind of animated content as it makes easy to understand!!!

      about 1 month ago
    • Programmers Gateway
      Programmers Gateway

      Thank You for such a wonderful video!!!

      about 1 month ago
    • Purushottam Hari
      Purushottam Hari

      this was truly awesome!!! Thank you so much

      about 2 months ago
    • Vivek Mukundan
      Vivek Mukundan

      Best explaination! Thank you!

      about 2 months ago
    • hart316

      “You Idiot!” LOL!!! Great video and explanation!

      about 2 months ago
    • Jan V
      Jan V

      Very nice Video! Thanks for those information!

      about 2 months ago
    • Bernardo Salerno Lameiras
      Bernardo Salerno Lameiras

      How about time-division multiplexing?

      about 2 months ago
    • Stabgan
      Stabgan In reply to Bernardo Salerno Lameiras

      It's channelizing protocol of Multiple Access Protocol , CSMA is a part of Random Access Protocol . TDMA is sharing of full badwidth for t-time to a single connection

      about 2 months ago
    • GamerMetalero411

      I'm not an english speaker but I understood you perfectly, thank you for the explanation :D

      about 2 months ago
    • Carl Baillargeon
      Carl Baillargeon

      THANK YOU !!! Your videos are amazing, by far the best channel on YouTube! thanks thanks thanks

      about 3 months ago
    • PowerCert Animated Videos
      PowerCert Animated Videos In reply to Carl Baillargeon

      Thank you

      about 3 months ago
    • Hatimy 2k
      Hatimy 2k

      Best channel this is free online school I love it thanks

      about 3 months ago
    • Nizam Khan
      Nizam Khan

      Awesome 👌

      about 3 months ago
    • Marco

      Thank you! Very good video. Simple and effective!

      about 3 months ago
    • abdulrahim almethiab
      abdulrahim almethiab

      I didn't get how the collision signal is sent, shouldn't it be sent on the same cable? what if the signal had collision with other data on the cable?

      about 3 months ago
    • Jon Smith
      Jon Smith

      Please keep up the good work. You are one of the best at explaining things with good animation really helps a lot. Currently studying cyber security for the comtia exams so add as many more videos as you can to cover the possible exam questions thanks

      about 4 months ago
    • PowerCert Animated Videos
      PowerCert Animated Videos In reply to Jon Smith


      about 4 months ago
    • XenoContact

      This is hands down the best Informational & Educational channel for IT on youtube. Thank you for the content and I wish you will keep pumping videos forever and help us understand the world better !
      I was wondering how come CSMA/CD doesn't cause a noticeable delay cause on my Router I could have at times two computers over ethernet that are both downloading large files but I don't get any significant delay on page loads for example ?

      about 4 months ago
    • arrudeboy
      arrudeboy In reply to XenoContact

      @PowerCert Animated Videos ​Hi, sorry about my ignorance, but I can't understand why full duplex makes CMSA not usable. I had had think that it was due to incoming switches on LAN's, then the cables now are dedicated by node and there not exists colision posibility. Sorry for my English too

      about 1 month ago
    • PowerCert Animated Videos
      PowerCert Animated Videos In reply to XenoContact

      CMSA is not used on modern networks...only older (half duplex) networks. I'm sure you're running a modern (full duplex) network.

      about 4 months ago
    • Baswanth

      you did not mentioned about back off if number of collisions increeses

      about 4 months ago
    • Stabgan
      Stabgan In reply to Baswanth

      that's csma , not /cd, /ca

      about 2 months ago
    • Rob Pickles
      Rob Pickles

      PowerCert deserves a knighthood! This is the best channel I have ever subscribed to!

      about 4 months ago