Seven-Second Subnetting - N10-008 CompTIA Network+ : 1.4

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  • Опубліковано 3 гру 2024

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  • @madisonmorado8329
    @madisonmorado8329 6 місяців тому +39

    I just PASSED the Network+ 008 exam primarily using this video series. The 7-second chart with octlet 2,3,4, magic number and subnet SAVED ME on ~10 questions. PBQ's were based on understanding subnetting and CIDR for "least number" of IP addresses in a subnet. Thank You!!

    • @ArtistFormallyKnownasMC
      @ArtistFormallyKnownasMC 6 місяців тому +4

      Thanks for sharing. I'm working on my school's Network+ course, and will be taking the exam come August. Good to know.
      Congrats on passing!

  • @johnsmith8981
    @johnsmith8981 2 роки тому +67

    Can I borrow some data for my subnet?
    How much do you need?
    Just a bit.

  • @indysabinmvhs
    @indysabinmvhs 3 роки тому +34

    you couldn't have uploaded this at a more perfect time! just got to subnetting in my net+ book, it wasnt explained the best in there but now i feel super confident! Thank you so much!

  • @MetalMeek
    @MetalMeek 2 роки тому +32

    I've spent probably close to 2 months chipping away at understanding subnetting. The time was well spent after finally watching this video -- it was a bear to get through, but this method put a nice bow on it all.

    • @ohgodwhy9853
      @ohgodwhy9853 2 роки тому

      Any resources in particular you'd recommend?

    • @whitelifeangel
      @whitelifeangel 2 роки тому +3

      Yes, please tell us because I still don't understand...maybe I'm slow

    • @22halomedia
      @22halomedia 7 місяців тому

      This video finally made it click. Seven second subnetting is definitely made for me. Doing all the mental math make my brain hurt. 😆

  • @stevens1041
    @stevens1041 Рік тому +26

    I appreciate that you gave a lot of examples here. I like this seven-second subnetting rule the most, I want to do as much practice with it as possible.

  • @ciscoguru69
    @ciscoguru69 5 місяців тому +4

    I've been a network engineer for 18 years. Subnetting still stumps me from time to time. Don't feel bad if you don't get it quickly. Practice, practice, practice. 😅

  • @JohnDoe-101
    @JohnDoe-101 8 місяців тому +5

    I got to rewatch this!

  • @braedonholt7384
    @braedonholt7384 3 роки тому +51

    19:42 Lol imagine walking in to take your exam and the god of Comptia Exams is arguing with the front desk to bring in his own dry erase marker.

    • @Sur_Reel
      @Sur_Reel 8 місяців тому

      What does this mean? Do they not provide the paper and pens or whiteboard and marker?

    • @GilliganRocks
      @GilliganRocks 7 місяців тому +2

      @@Sur_Reel guess you didn't watch the whole video. :(

    • @ArtistFormallyKnownasMC
      @ArtistFormallyKnownasMC 6 місяців тому

      I LOVE IT! Such a funny visual.
      It is a great idea. Ensuring you know it's got enough ink in it, and has not been flattened by some heathen in past tests. I am very picky about markers. I want my Sharpies and Paper Mate Flairs to keep their sharp tip for the length of the marker. haha

    • @socalmasker
      @socalmasker 2 місяці тому

      @@Sur_Reel They provide a whiteboard and markers at the testing center, but sometimes they are close to being dry (unless you press really hard to make them visible) or the ends are too thick to write on the whiteboard provided to you.
      I plan on my next exam to buy some fine tip whiteboard markers and have the test center verify them. I know it's overkill but sometimes with the thick markers you don't have a lot of space to write and you can't erase the board either.

    • @Sur_Reel
      @Sur_Reel 2 місяці тому +1

      @@socalmasker yeah I ended up bringing my own and passed working on my degree right now and then getting sec+ , cysa + and pentest + after

  • @waseemhasan5372
    @waseemhasan5372 10 місяців тому +1

    The course one of the primary resources to pass the Network+ exam. Thanks Professor Messer for providing such great contents.

  • @Weapon_20_X
    @Weapon_20_X 9 місяців тому +2

    I had to watch this video a few times and write very detailed notes before the lightbulb went off, lol. I was able to figure out how the calculations worked and its been smooth sailing since then! Thanks Prof!

    • @Clea-vx3fy
      @Clea-vx3fy 6 місяців тому +1

      Man, when that lightbulb clicks!! 🙌🏾

  • @ArtistFormallyKnownasMC
    @ArtistFormallyKnownasMC 6 місяців тому +3

    Time to get back to the grind! Thank you so much!

  • @clairehan7535
    @clairehan7535 2 роки тому +5

    I've come back to this video severall times during my revision. Great content, thank you

  • @chrisb2g
    @chrisb2g 3 роки тому +9

    Another winner! Practicing my charts now!

  • @travisrolison9646
    @travisrolison9646 2 роки тому +84

    Making the charts from memory looks daunting . Seems silly you can’t have the chart for the tests. I mean in real life you can make a book with all the charts and stuff to keep with you while working,

    • @damonskates
      @damonskates 2 роки тому +87

      in real life you also have google lmao

    • @lertub
      @lertub 2 роки тому +7

      I wrote the chart when I went into my test and it helped me pass

    • @chairliftt
      @chairliftt 2 роки тому +8

      the chart itself is very simple: count to 32 in rows of 8. count from binary 10000000-11111111. do 2^1 to 2^8. do 2^7 to 1. memorizing it takes a few minutes of writing it down several times, mostly just the binary part.

    • @JohnSmith-nk4vn
      @JohnSmith-nk4vn 2 роки тому

      Halves and doubles - not that hard

    • @jakepayne2985
      @jakepayne2985 2 роки тому

      It seems that way, but once you start writing it, it’s a breeze

  • @mattkingsley7679
    @mattkingsley7679 3 роки тому +6

    Very nice explanation. I have trying to use the magic number method and just like you, when there are a whole bunch of subnets to figure out, my math might get a little off.

  • @Ready2eddie
    @Ready2eddie Рік тому +1

    This really improved my understanding of subnet calculation. Thank you, sir.

  • @D87-t8e
    @D87-t8e 2 роки тому +7

    I'm glad everyone is getting it. This subnetting has my head is spinning I want to go more cyber security route, but I know network is needed I will keep watching.

  • @Sephiga
    @Sephiga 3 місяці тому

    after much practice, i will say that seven subnetting method works best for me! For those struggling with figuring out their subnetting method, i say keep trying the seven second method over and over. You will find that eventually you will become so fast at subnetting that it will really feel like a few seconds (maybe not 7 lol)

  • @ronnyzambrana9933
    @ronnyzambrana9933 3 роки тому +1

    That method is super great! !! From now on i will use it!!!

  • @sethmeyer2443
    @sethmeyer2443 2 роки тому +6

    I remember the 4s by thinking of election years 76, 80, 84, 88, 92 etc

  • @tricky_d1672
    @tricky_d1672 2 роки тому +3

    Your Magic # chart is my go to chart.

  • @ADHDLearningCyberSecurit-ik2yp

    Thanks so much, i love you I understand now you are a lifesaver

  • @RONLEO24
    @RONLEO24 Рік тому +1

    Confused on min 11.15, Can we get the broadcast 127 without the table on the bottom?

  • @qwerty4me333
    @qwerty4me333 Рік тому +5

    My biggest struggle with dry erase isnt the pen tip... its having to try and write it out with my right hand so I dont erase it lol

    • @samragsdale2301
      @samragsdale2301 Рік тому +3

      Lefty's of the world feel your pain, brother.

  • @adrianmartinez1110
    @adrianmartinez1110 10 місяців тому +1

    Does anyone know how to use this method for questions asking how many hosts and how many networks?

  • @sanjivgupta5380
    @sanjivgupta5380 3 роки тому +3

    Pl also guide important bullet points to pass CCNA and how to remember subnetting. I wish to clear the certification.

  • @GilliganRocks
    @GilliganRocks 7 місяців тому +1

    I feel like I'm not understanding the "Addresses" part of this table, can someone explain it to me?
    What do they represent?

  • @BrassicaMusic
    @BrassicaMusic Рік тому +2

    Will examiners let you draw these charts before the exam starts? Or is the clocking ticking??? 😦

    • @professormesser
      @professormesser  Рік тому +5

      You are only able to make notes after the exam clock has started.

  • @Chrisp0394
    @Chrisp0394 Рік тому +3

    So do you pretty much have to memorize the charts? I don't think you can bring them into the exam so you'll have to remember them and draw them yourself correct?

  • @eric1565
    @eric1565 Рік тому +2

    Is subnet id the same as network address?

  • @muhammadekowahyudi3442
    @muhammadekowahyudi3442 2 роки тому

    thank you

  • @Kaneo_3987
    @Kaneo_3987 Рік тому

    Fantastic!

  • @dean4605
    @dean4605 7 місяців тому

    So basically 255 and 0 are On and off. Hence why we bring down the 255 and not when it’s 0. Because it’s on and off.

  • @sanjivgupta5380
    @sanjivgupta5380 3 роки тому

    Very nice

  • @Mellothefell0
    @Mellothefell0 Рік тому

    Taking my network plus exam in august, is the seven second subnetting method required or can I stick with the magic number method?

  • @jakepayne2985
    @jakepayne2985 2 роки тому

    For the exam, will they allow us to use calculators for the simple math? I’d like to make sure my Boundaries chart is accurate as I write it. Also, how much time do they give you beforehand to write down your charts from memory?

    • @AlainaAMenace
      @AlainaAMenace 2 роки тому +1

      You don't get time beforehand you have to write it during your test. So say your test starts begin writing this maybe it takes five minutes then you took 5 minutes of your test time to write it out. You aren't allowed to write things down before hand because it could be cheating

    • @jakepayne2985
      @jakepayne2985 2 роки тому +3

      @@AlainaAMenace So you’re saying he actually recommends you take YOUR TEST TIME to write out that long, God forsaken Boundaries Chart during the test? That’s just fantastic

    • @AlainaAMenace
      @AlainaAMenace 2 роки тому +5

      @@jakepayne2985 it's really not that hard to do practice writing itnout you'll get faster and remember it easier. I didn't create the exam rules I'm just telling you that's what I was told when I went and took the A+ and earned my cert

    • @Bot32612
      @Bot32612 Рік тому

      @@AlainaAMenace you get 30 mins to write down the stuff before the test.

    • @AlainaAMenace
      @AlainaAMenace Рік тому +2

      @Sebastian Lisowski when I took my exam this wasn't the case. You had to write down any notes during the test which doesn't take too long. The questions themselves can be answered in a few seconds besides the pbqs so it's not that hard

  • @Akerfeldt77
    @Akerfeldt77 Рік тому +2

    I....I actually understand this. And have been able to do it without cheating back to the videos. Areyouawizard.jpg