802.11 Wireless Standards - CompTIA A+ 220-1001 - 2.4

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  • Опубліковано 26 січ 2025

КОМЕНТАРІ • 42

  • @DataDietz
    @DataDietz 5 років тому +75

    Just signed up for A+ Core 1 test. You were the best in the game according to the internet, thanks so much for making this series! I just bought the notes, can't wait for the next study session :)

    • @QuanLovesGaming
      @QuanLovesGaming 4 роки тому +31

      How'd you do?

    • @donemerico
      @donemerico 3 роки тому +1

      Where did you buy the notes?

    • @xavier2032
      @xavier2032 2 роки тому

      @@donemerico just check the links in description

  • @amyl2938
    @amyl2938 4 роки тому +8

    I always struggled understanding the 802.11 standards. Thank you so much for making that easy to understand!!!!!!!

  • @wilIis
    @wilIis 3 роки тому +2

    Really appreciate the tables you make to easily see the different speeds. Going through your videos and making flash cards... let's get that cert!!

  • @beccaboo9960
    @beccaboo9960 5 років тому +7

    That chart at the end was so helpful to understand thank you for all ur hard work!

  • @kerrimay2178
    @kerrimay2178 5 років тому +4

    THANK YOU for all your time and efforts putting all these videos together! Your clarity, direct approach and info packed videos are 2nd to none. Best in the field in my opinion for all new to IT field looking for a legit, correct source to learn from. THANK YOU

  • @oneloopmedia2511
    @oneloopmedia2511 4 роки тому +8

    you're a frikn legend this is so precise and too the point, better than a course I paid £500 for ;)

    • @emanx222
      @emanx222 4 роки тому +2

      You're telling me! I wish I knew about this channel before I went and spent £800 on a course that isn't anywhere near as detailed as this :'( (I'm assuming yours is run by IT Career Switch also haha

    • @husnain5083
      @husnain5083 4 роки тому

      @@emanx222 IT carrer switch is a scam lol

    • @emanx222
      @emanx222 4 роки тому +2

      @@husnain5083 I've learnt that the hard way man!

    • @treys1695
      @treys1695 2 роки тому

      What courses did you guys buy? I’m a interactive learner and I know this guy is great but I’m still having a hard time getting the information to stick :( I wish there was a cheap course that’s interactive

  • @mrkk2167
    @mrkk2167 6 років тому +16

    Thank you so much for doing these videos! You're easily one of the best resources I've found. Thank you again.

  • @Mikaeelabdullah
    @Mikaeelabdullah 2 роки тому

    I'm watching professor videos day and night, I want to take and pass the 1001 and 1002 before October. Thank you professor

  • @franciscooooooooooo
    @franciscooooooooooo 3 роки тому +3

    So I want to buy a new phone and I plan to use it as a hotspot a lot of times to share the internet from mobile data with my PC. Should I buy a phone with 802.11 ac to achieve better speeds with the hotspot or is this only applicable to WIFI and therefore 802.11 n is enough in a phone?

  • @eddie2613
    @eddie2613 6 років тому +14

    Hi. IF you don't mind me asking what is the correct terminology for speed, Mbps or Mbit/s ? Or it doesn't really matter when talking about the network transfer speeds?

    • @professormesser
      @professormesser  6 років тому +23

      Either abbreviation for megabits per second can be used. I tend to use Mbit/sec in my courses because it's a bit easier to understand when you're reading through all of these new concepts for the first time.

    • @eddie2613
      @eddie2613 6 років тому +5

      @@professormesser thank you for prompt reply and clarification, appreciate it. Keep up the good work.

  • @solefood229
    @solefood229 2 роки тому +1

    Taking my core 1 in a few hours 🤞🏾

    • @KB-313
      @KB-313 2 роки тому

      howd it go? anything surprise you?

    • @solefood229
      @solefood229 2 роки тому +2

      @@KB-313 I passed, taking part 2 in a few weeks.

    • @KB-313
      @KB-313 2 роки тому

      @@solefood229 did you mainly use these videos? and sheeiiiiiiiiiiiiiiiiit very nice downtown Clay Davis

    • @solefood229
      @solefood229 2 роки тому

      Passed my core 2 yesterday 🙌🏾

  • @hamzapuris
    @hamzapuris 3 роки тому

    Always easy to understand explanation, great video! Thanks 👍

  • @idknuttin
    @idknuttin 4 роки тому +12

    I'm using an ac router connected to my cable modem but after setting it up I have options for both 2.4ghz and 5ghz wifi. How can this be possible if ac should only support 5ghz?

    • @professormesser
      @professormesser  4 роки тому +21

      The 2.4 GHz communication is using the 802.11n standard.

  • @zolalloyd46
    @zolalloyd46 5 років тому +28

    The naming conventions for 802.11 networking always bemuse me. You have 11a, 11b..... and then there's a jump to 11g... then n.... and then back to ac.
    Is there any particular reason for that? Was there ever a 11c, 11d etc.? (Just my idle curiosity working overtime, I guess)

    • @professormesser
      @professormesser  5 років тому +41

      There are minor standards created between the major ones, so there actually are specifications for 802.11c, 802.11d, etc. Those aren't significant updates to frequencies and modulations, so you don't often hear about them.

    • @zolalloyd46
      @zolalloyd46 5 років тому +8

      @@professormesser Wow! Thanks for the prompt response, especially given that it must be at least early morning across the Pond (I'm from the UK). Thanks again: all makes sense now.

    • @stevenxdavis
      @stevenxdavis 5 років тому +6

      I was just about to ask this myself. Thanks for the response. Everything is so easy to understand.

    • @Meteor-IE
      @Meteor-IE 4 роки тому +1

      @@professormesser Very interesting, why the jump back then to 'ac' from 'n' ?

    • @professormesser
      @professormesser  4 роки тому +8

      @@Meteor-IE The letters are incremented alphabetically. After standard z, the next standard would be aa, then ab, then ac...

  • @TeeteringPeaks
    @TeeteringPeaks 4 роки тому +7

    No mention of 802.11ax?

    • @professormesser
      @professormesser  4 роки тому +22

      Final approval for the 802.11ax standard will most likely be at the end of 2020. 802.11ax is not listed in the CompTIA exam objectives.

  • @raulsanchez4716
    @raulsanchez4716 3 роки тому

    Wow! This was great information. Thank you!

  • @gueroloco8687
    @gueroloco8687 3 роки тому

    Very good video!!! Thanks so much!!

  • @trahman9844
    @trahman9844 2 роки тому

    Thank you so much for these videos!! I just wanted to ask about throughput, I understand that 802.11n has a higher throughput, does that mean that any devices that use that wireless standard is able to process high amounts of information?

  • @Droodie
    @Droodie 4 роки тому +1

    Thank you!!!!

  • @kevinmiller1251
    @kevinmiller1251 5 років тому +2

    Which OS laptop would you recommend going into comptia a+ field?

    • @trentonfuller461
      @trentonfuller461 3 роки тому

      It doesn't matter, every single distro for Linux can be loaded onto a VM for learning purposes as well as Windows. It you really need access to macOS Id suggest a macOS machine but if thats not a concern then I would go for the OS that is most comfortable for you