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    Wireless Network Technologies - CompTIA A+ 220-1001 Prof Messer

    IT Careers
    wireless wifi 802.11 comptia a+ youtube it career it training video training networking
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    • maryM
      mary
      last edited by

      Is it important to know what channel you are operating on?

      scottalanmillerS 1 Reply Last reply Reply Quote 0
      • JaredBuschJ
        JaredBusch
        last edited by

        only for the person designing the deployment.

        or the person troubleshooting problems later when three neighbors added wifi.

        1 Reply Last reply Reply Quote 1
        • scottalanmillerS
          scottalanmiller @mary
          last edited by

          @mary said in Wireless Network Technologies - CompTIA A+ 220-1001 Prof Messer:

          Is it important to know what channel you are operating on?

          If you are troubleshooting. But thats generally it.

          1 Reply Last reply Reply Quote 0
          • connorsoliverC
            connorsoliver
            last edited by

            Why isn't zigbee used for computers?

            scottalanmillerS 1 Reply Last reply Reply Quote 0
            • scottalanmillerS
              scottalanmiller @connorsoliver
              last edited by

              @connorsoliver said in Wireless Network Technologies - CompTIA A+ 220-1001 Prof Messer:

              Why isn't zigbee used for computers?

              802.15.4 (aka ZigBee) has a speed of 250 Kb/s which is SO slow. High enough to make two phone calls, but that's it. Not enough to really "do" anything. It's plenty fast to send sensor data or basic instructions, but way too slow for any computer usage.

              Old 802.11b, the slowest computer wireless tech, was 11Mb/s, which is 44x faster than Zigbee and considered worthless because it is so slow. We want our wireless in the 100Mb/s+ range these days.

              1 Reply Last reply Reply Quote 0
              • brianwinkelmannB
                brianwinkelmann @steve
                last edited by brianwinkelmann

                Cool Very interesting Video about Wireless Network Technologies

                1 Reply Last reply Reply Quote 1
                • valentinaV
                  valentina
                  last edited by

                  watching this rn : -)

                  1 Reply Last reply Reply Quote 1
                  • OsvaldoO
                    Osvaldo
                    last edited by

                    Interesting

                    1 Reply Last reply Reply Quote 0
                    • OsvaldoO
                      Osvaldo
                      last edited by

                      I wonder if there is a tool for radio hacking zigbee?

                      travisdh1T 1 Reply Last reply Reply Quote 0
                      • travisdh1T
                        travisdh1 @Osvaldo
                        last edited by

                        @Osvaldo said in Wireless Network Technologies - CompTIA A+ 220-1001 Prof Messer:

                        I wonder if there is a tool for radio hacking zigbee?

                        Many of the devices that use the protocol are never updated, therefor quite a large target for hacking.

                        The radio protocol itself I doubt is much use to "hack" (Any cheap software defined radio will be able to imitate a Zigbee device.)

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