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.


    • Purushottam Hari
      Purushottam Hari

      this was truly awesome!!! Thank you so much

      about 9 days ago
    • Vivek Mukundan
      Vivek Mukundan

      Best explaination! Thank you!

      about 9 days ago
    • hart316

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

      about 13 days ago
    • Jan V
      Jan V

      Very nice Video! Thanks for those information!

      about 21 day ago
    • Bernardo Salerno Lameiras
      Bernardo Salerno Lameiras

      How about time-division multiplexing?

      about 23 days 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 4 days ago
    • GamerMetalero411

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

      about 28 days ago
    • Carl Baillargeon
      Carl Baillargeon

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

      about 1 month ago
    • PowerCert Animated Videos
      PowerCert Animated Videos In reply to Carl Baillargeon

      Thank you

      about 1 month ago
    • Mohamed Hatimy
      Mohamed Hatimy

      Best channel this is free online school I love it thanks

      about 1 month ago
    • Nizam Khan
      Nizam Khan

      Awesome 👌

      about 1 month ago
    • Marco

      Thank you! Very good video. Simple and effective!

      about 1 month 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 2 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 2 months ago
    • PowerCert Animated Videos
      PowerCert Animated Videos In reply to Jon Smith


      about 2 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 2 months 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 2 months ago
    • Baswanth

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

      about 2 months ago
    • Stabgan
      Stabgan In reply to Baswanth

      that's csma , not /cd, /ca

      about 4 days ago
    • Rob Pickles
      Rob Pickles

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

      about 2 months ago
    • Mohamed Anfas
      Mohamed Anfas

      Thank you..

      about 2 months ago
    • buckeyejm

      The videos you make are very good and have helped me pass CompTia exams. The graphics are well done and your voice is very clear

      about 2 months ago
    • PowerCert Animated Videos
      PowerCert Animated Videos In reply to buckeyejm


      about 2 months ago
    • Raaj Magdum
      Raaj Magdum

      Will u make vid on HELPDESK, ticketing tools

      about 2 months ago
    • Qeis Ismail
      Qeis Ismail

      Im understand.

      This is why my computer stop while using an another computer that use network

      about 2 months ago
    • fishribbon
      fishribbon In reply to Qeis Ismail

      Im too

      about 1 month ago
    • User123

      let me kiss your brain

      about 2 months ago
    • Kenneth

      Absolutely amazing breakdown of these two technologies! I really love this channel because he breaks the concepts down in a way that really makes you understand the topics. The funny word balloons always make me smile too! Great video.

      about 2 months ago
    • PowerCert Animated Videos
      PowerCert Animated Videos In reply to Kenneth


      about 2 months ago
    • Long Phát
      Long Phát

      Pc pip nơ???

      about 3 months ago
    • Jwan Suly
      Jwan Suly

      so which technology do we use today instead of the CSMA/CA ?

      about 3 months ago
    • PowerCert Animated Videos
      PowerCert Animated Videos In reply to Jwan Suly

      There's no need for it in a full duplex network....since it has "2 lanes"...1 for each direction.

      about 3 months ago
    • Mark Thompson
      Mark Thompson

      Thank you for the very informative video #TEACHER

      about 3 months ago
    • Kewad Gnahc
      Kewad Gnahc

      Dude are you a teacher? Because I learn so much more stuff on your channel than reading a book. Keep it up man! Love the videos!

      about 3 months ago
    • Felipe Menegati
      Felipe Menegati

      my man ! I love this channel

      about 3 months ago
    • Vimal Vimal
      Vimal Vimal

      Waiting for the animation of working of VPN network

      about 3 months ago
    • Carlos Daniel Rios
      Carlos Daniel Rios

      Another excellent video!!

      about 3 months ago
    • Adrian Adam
      Adrian Adam

      Very nice as usual it is easy to understand thank you

      about 3 months ago
    • Abiral Pandey
      Abiral Pandey

      You never made 902 course. We'd love to see from you.

      about 3 months ago