You know this man is an engineer when he spends 15 min at the Physical layer PS Thanks so much! It's actually pretty difficult to find a comprehensive video done within 30 min
@@Junglist619000 Considering that one refers to the male aspect versus the female aspect of the two components i would hardly consider this enough to negate his 30 years of experience. Rather trivial error anyone could make producing a video for the internet lol
thank god, youre way better than my teacher he just sits at the top of the class in silence and assigns reading assignments and makes you feel stupid for asking him a question, you explain IN PLAIN ENGLISH WITH VISUAL EXAMPLES youre a good man for this work, paving the way for us newbies
my course is fully online in modules so the teacher just uploads a lesson plan cisco sends the school minus the answers and links videos that are minutes of confusing short explanations that overlap eachother
I had some basic knowledge of the OSI or TCP/IP model, although there were obvious gaps in that knowledge that was filled with thanks to this video! I love how short it is but covers so much, especially a 15 minute introduction to the physical layer 😂I thought the physical layer would receive the least amount of attention. Thank you!
great introduction Kevin. but for complete beginners like me, it'd be more perceptible if you explain: why these layers were born, why they're called layers in the first place, why this model was chosen, besides talking what these 'layers' do. that'd give a holistic picture of how the entire concept originated and why this setup was chosen. it'd make your video a lot more substantial and probably the only one, as I haven't found even one that talks about it! kudos to you for the great work! blessings
I have watched many OSI model explanations, but this was one of the easiest to understand. The explanation of thr Application layer stands out as something I am able to relate to better. That is just one example of many.
Best demystification of OSI layers. Been always gr8 fan of yours. I started off my IT career in 2015 and today I am at the CCNP level, my both CCNA & CCNP study training was KW only. Today, I am enjoying a highly paid job. Your way of teaching just syncs extremely well.
I really appreciate the explanation starting with the physical layer and moving up. It makes much more sense that way. It's also excellent how much you focus on the first few layers! Those are the ones I need to learn most intimately for my position. You have a very good speaking voice!
Kevin you are so wonderful. Honestly you have re-enkindled light in me by giving a clear and better explanation and understanding through you down to top approach of the OSI.
this helped me better understand the osi model better than my professor explained it sadly she has a thick accent, and it is difficult to understand her sometimes, but it gave me a better visualization of how each layer works and what's associated with each layer and protocol.
One of the best OSI layer explanations! I found it very easy to understand. I like how you used objects and drawings to explain the concepts, making understanding it way easier than just me reading a book and imagining the whole thing in my little head. This helped refresh my memory as I prepare for an important certification exam.
Started my Cert IV in Information Technology (Networking) in Australia. Your video pretty much gave me an excellent overview of how Network operates. I feel confident doing my studies now. Thank you Kevin.
Kevin, your training style is great. I just started your Networking Fundamentals course on LinkedIn and wanted more depth on the OSI model, and of course your video comes up. Keep doing what you are doing, this material is invaluable to have on TH-cam!
Thanks for the video! I am studying for comptia network+ certification and this really goes into more detail. Also I was in a job interview with a company and they asked me what the OSI model was and how it related to IT work so people still reference this all the time.
I appreciate your valuable time. I love your detailed elaborations of the OSI Model. It really goes a long way in my IT career. Comprehensive, clear, concise, detailed and relevant. Great tutorial mr. Kevin 👍👍
Great video. I know nothing about IT but got convinced to get my network + certification. I figured it was no big deal. I'd figure it out until I got into my comptia coursework. I quickly learned that I need to learn so much and I also need to learn the fundamentals before network plus because this stuff has so many abriviations and terms I don't know/understood and even when I learn the definition I don't hate any knowledge of how or why to apply it. But this video does help me understand at least this one model.
Love this! One of the best explanations of the OSI model. I am preparing to take a test next week for my network and security foundations class and I've heard the majority of the test covers OSI and the course material just wasn't clicking but your video has helped me to better understand the OSI model. You rock, Kevin!
Is the first video I see in TH-cam which clearly captures and lays out concise explanations for the OSI Model. This was very helpful for a beginner such as myself.
Kevin you are so wonderful. Honestly you have kindliness light in me by giving a clear and better explanation and understanding through you down to top approach of the OSI.
Such an excellent video, I have an upcoming test and I didn't quite get the subject content given by the professor. Thanks a lot! This helped me so much
Thanks man. Having worked in the industry for a few years now my functional knowledge is good.. but the smaller details have faded over time. Have an interview with JP Morgan tomorrow, prepping like crazy tonight and this was very thorough
Thank you so much for this! I’ve been struggling to find an in depth video explaining everything that happens in each layer. Definitely using as my reference for my notes ❤
I'm preparing to prepare to sit for the OSCP and I wanted to dig into networking to get some idea of network based attack vectors and this video has filled in some gaps I had for SURE in my networking knowledge. Thank you for this! Learned even more than I expected and will for sure be looking into more of your videos as I prepare to write this exam.
First of all it gives me so much pleasure to appreciate and thank you for your time and your friendly expertise sharing with us. I have one question that makes me confused, here's my question: assume host A sends a message ( e.g.enemies are coming) to host B, lets see on the OSI MODEL : LAYER 7 (e.g. enemies are coming) --->layer6 (the sky is falling (encrypted the message))---->layer5 ( open communication like walkie talkie to exchange password, authentication,authorization and to make sure it is from the right source) and here's the confused part, how come host A communicate host B with out having port#, IP address, Ethernet header and trailer bits? How communication occur between host A's layer 5 and host B's layer 5 without L4,L3,L2&L1.?
I got the TCP/IP guide by Charles Kozierok whitch I'm actually using as a reference guide for what to watch on TH-cam. The book is from 2005 but it's an amazing tool to learn networking with youtube videos like these. Next my goal is to learn nmap and then wireshark. Thanks for this video I will definitely rewatch.
Hi Kevin! I'm Kevin too. Tbh I find this very interesting and not boring at all. Using this vid to memorise it for my network+. Thank you !! keep up the work !
You are a Awesome teacher sir, I dont know how i felt before studying your course from oreilly, I thought ok .. i can just understand what are the layers ..that's it Iam a sys admin, but with lot confusions in the networking side.... But believe me now in my mind i am feeling very confidence in Networking as a fresher but now i can grasp new things and become expert in Networking. Because of your classes only i got this much confidence...!!!!! Thanks a Lot SIR... you are one of the best tutor in networking :)
Fantastic 30 Minute Crash Course on the OSI Model! I'm a complete newbie to Data Networks, this will definitely be useful for my upcoming course on Telecommunications! Thank you so much! Please Do Not Throw Sausage Pizza Away! Love it!
Kevin really knows his stuff. The overly technical examples kind of got me lost because I'm just starting out in Networking / Cybersecurity. But after I learn some more I'll revisit this video. If you love the very technical examples I'd say go for it if you are just need a basic foundation. I would check out Eli the Computer Guy. And then research some more OSI information and then once you have a basic foundation come back and check out this video. I feel like you will be able to get a lot more out of it since you understand a lot of the examples. Just my thoughts. I have zero experience with networking (X-want-be programmer turned Cybersecurity).
Very useful, takes me back to class and even further back to the dinosaur networks I first learned on. Thinnet/10Base2 … was so clunky by more recent standards. Rings?! Ugh. Will it work today? Who’s changing what?
You know this man is an engineer when he spends 15 min at the Physical layer
PS Thanks so much! It's actually pretty difficult to find a comprehensive video done within 30 min
Actually he spends 14 min and 45 seconds.
Except he called a plug a jack.
@@Junglist619000 Considering that one refers to the male aspect versus the female aspect of the two components i would hardly consider this enough to negate his 30 years of experience. Rather trivial error anyone could make producing a video for the internet lol
@@Junglist619000 it is called jack 45...
Lol....😂Yeah, I know that's right, but at least he knows what he is talking about.
thank god, youre way better than my teacher he just sits at the top of the class in silence and assigns reading assignments and makes you feel stupid for asking him a question, you explain IN PLAIN ENGLISH WITH VISUAL EXAMPLES youre a good man for this work, paving the way for us newbies
My teacher sucks as well. I have to send this video to everyone in my class because the way my teacher explained it was total crap.
this comment alone made me subscribe. I'm super excited for the vid!
also I hope the rest of your education went better than with that one professor!!
my course is fully online in modules so the teacher just uploads a lesson plan cisco sends the school minus the answers and links videos that are minutes of confusing short explanations that overlap eachother
I spent nearly 20 years listening to Kevin Wallace from Somalia, and I learned so much from this engineer and teacher. Thank you, sir!
learning this in 2024 and the information passed is still very valid across both physical and cloud servers. you are the goat for real 💯
I don't know to what we owe the existence of this video, but no teacher could explain it so clearly.
It amazes me that your view count isn’t higher. This is by far the best OSI model presentation I’ve seen. Thank you so much!!
Honestly, this man can explain the OSI model better in 30 mins than my professor can in 3 hours.
Thank God,I found you! Thank you for the most beautiful presentation I had for osi. Really appreciate it. 🎉
thank you, you were great I now have an understanding of this. My teacher stinks compaired to you God bless
I love hearing about what people thought in the 80s and how different it is today. Good teachers often have been in the game for decades.
Clearly explained the four ways data is referenced in Layers 1 ~ Layer 4. Clarified the misconception of Layer 7. Thank you for the video.
OMG, this was absolutely the best OSI explanation I have ever witnessed!!! Thank you, thank you, thank you.
I'm taking a cyber security course and my college has actually linked your videos for us to watch. It's been very informative.
I had some basic knowledge of the OSI or TCP/IP model, although there were obvious gaps in that knowledge that was filled with thanks to this video! I love how short it is but covers so much, especially a 15 minute introduction to the physical layer 😂I thought the physical layer would receive the least amount of attention. Thank you!
the best presentation of the OSI layer I heard. Thanks, Kevin!
great introduction Kevin. but for complete beginners like me, it'd be more perceptible if you explain: why these layers were born, why they're called layers in the first place, why this model was chosen, besides talking what these 'layers' do. that'd give a holistic picture of how the entire concept originated and why this setup was chosen. it'd make your video a lot more substantial and probably the only one, as I haven't found even one that talks about it!
kudos to you for the great work! blessings
I have watched many OSI model explanations, but this was one of the easiest to understand. The explanation of thr Application layer stands out as something I am able to relate to better. That is just one example of many.
Best demystification of OSI layers. Been always gr8 fan of yours. I started off my IT career in 2015 and today I am at the CCNP level, my both CCNA & CCNP study training was KW only. Today, I am enjoying a highly paid job. Your way of teaching just syncs extremely well.
That’s so awesome to hear! Congratulations on your success, and I’m happy my training played a role. All the best!
I really appreciate the explanation starting with the physical layer and moving up. It makes much more sense that way. It's also excellent how much you focus on the first few layers! Those are the ones I need to learn most intimately for my position. You have a very good speaking voice!
First time I watch like this type of teacher in technical field
Kevin you are so wonderful. Honestly you have re-enkindled light in me by giving a clear and better explanation and understanding through you down to top approach of the OSI.
this helped me better understand the osi model better than my professor explained it sadly she has a thick accent, and it is difficult to understand her sometimes, but it gave me a better visualization of how each layer works and what's associated with each layer and protocol.
One of the best OSI layer explanations! I found it very easy to understand. I like how you used objects and drawings to explain the concepts, making understanding it way easier than just me reading a book and imagining the whole thing in my little head. This helped refresh my memory as I prepare for an important certification exam.
Started my Cert IV in Information Technology (Networking) in Australia. Your video pretty much gave me an excellent overview of how Network operates. I feel confident doing my studies now. Thank you Kevin.
I like to use the Accronym "Please do not teach students pointless Accronyms"
The bestest explanation I ever heard of OSI model
I have an exam in few days and you saved me lots of time.Thanks.
Kevin, your training style is great. I just started your Networking Fundamentals course on LinkedIn and wanted more depth on the OSI model, and of course your video comes up. Keep doing what you are doing, this material is invaluable to have on TH-cam!
WHERE HAVE YOU BEEN OF entire MY DAY THANK YOU VERY MUCH ❤❤❤❤❤ , you just saved my a** from failing network class.
Only 30 mins! This is the best explanation I ever watched. Thank you very much.
Thanks for the video! I am studying for comptia network+ certification and this really goes into more detail. Also I was in a job interview with a company and they asked me what the OSI model was and how it related to IT work so people still reference this all the time.
the best video on the OSI model on the internet. should be a required video for any networking course.
I appreciate your valuable time. I love your detailed elaborations of the OSI Model. It really goes a long way in my IT career. Comprehensive, clear, concise, detailed and relevant. Great tutorial mr. Kevin 👍👍
Great video. I know nothing about IT but got convinced to get my network + certification. I figured it was no big deal. I'd figure it out until I got into my comptia coursework. I quickly learned that I need to learn so much and I also need to learn the fundamentals before network plus because this stuff has so many abriviations and terms I don't know/understood and even when I learn the definition I don't hate any knowledge of how or why to apply it. But this video does help me understand at least this one model.
Love this! One of the best explanations of the OSI model. I am preparing to take a test next week for my network and security foundations class and I've heard the majority of the test covers OSI and the course material just wasn't clicking but your video has helped me to better understand the OSI model. You rock, Kevin!
Hi Cherish, I am currently doing S+ personally is it possible that I can connect with you. Thank you.
Is the first video I see in TH-cam which clearly captures and lays out concise explanations for the OSI Model. This was very helpful for a beginner such as myself.
Its so refreshing to find such a good teacher, thank you so much for these videos, I'm so glad I discovered this material.
My life wouldve been lot different if i had teachers like you ! The best 10/10
This is the first time I feel like I really understood what happens at the Session and Presentation layers.
Kevin you are so wonderful. Honestly you have kindliness light in me
by giving a clear and better explanation and understanding through you
down to top approach of the OSI.
Thanks
You demistified my fear of avoiding this topic every time.
Such an excellent video, I have an upcoming test and I didn't quite get the subject content given by the professor. Thanks a lot! This helped me so much
Best OSI Model explanation I've come across. You've got a knack for teaching.
I will be studying this for my upcoming exam. Thank you sir
As a visual learner this has been instrumental! Thank you for your detailed explanation of each layer
Just 5 minutes in and I can already see the difference. Great teaching!!
Wow, your video are very helpful and useful for basic network learner.😊
Your are very telnet to explain osi 7 layer..!
Thanks man. Having worked in the industry for a few years now my functional knowledge is good.. but the smaller details have faded over time. Have an interview with JP Morgan tomorrow, prepping like crazy tonight and this was very thorough
Thank you so much for this! I’ve been struggling to find an in depth video explaining everything that happens in each layer. Definitely using as my reference for my notes ❤
wow, surely amazed to see such a detailed elaboration, i wonder how did you get such level of understanding of OSI, thank you very much
Well explained. I was especially misguided about the application layer before. Thank you for explaining that one
You are simply a GREAT Trainer. thank you KEVIN for your contribution to the Networking world.
Hey thank you for the best explanation.
I have an Interview tomorrow and this is the best explanation I have ever heard.
The best OSI model explanation on the web!
This is probably one of the best OSI video out there. Thank you!
Great teacher , i really salutate you 🙂
I'm preparing to prepare to sit for the OSCP and I wanted to dig into networking to get some idea of network based attack vectors and this video has filled in some gaps I had for SURE in my networking knowledge. Thank you for this! Learned even more than I expected and will for sure be looking into more of your videos as I prepare to write this exam.
Kevin is the real thing!! Great and simple explanation -- thank you for no making the OSI model so intimidating.
First of all it gives me so much pleasure to appreciate and thank you for your time and your friendly expertise sharing with us. I have one question that makes me confused, here's my question: assume host A sends a message ( e.g.enemies are coming) to host B, lets see on the OSI MODEL : LAYER 7 (e.g. enemies are coming) --->layer6 (the sky is falling (encrypted the message))---->layer5 ( open communication like walkie talkie to exchange password, authentication,authorization and to make sure it is from the right source) and here's the confused part, how come host A communicate host B with out having port#, IP address, Ethernet header and trailer bits? How communication occur between host A's layer 5 and host B's layer 5 without L4,L3,L2&L1.?
U are killing it... first two minutes already knew was a good explanation 👌
This is the best explanation of the OSI Model ever. Thanks Kevin.
You have a great way teaching to beginners. Thank God for you 🙏🏾
Best OSI overview I've found on TH-cam
I got the TCP/IP guide by Charles Kozierok whitch I'm actually using as a reference guide for what to watch on TH-cam. The book is from 2005 but it's an amazing tool to learn networking with youtube videos like these. Next my goal is to learn nmap and then wireshark. Thanks for this video I will definitely rewatch.
Hi Kevin! I'm Kevin too. Tbh I find this very interesting and not boring at all. Using this vid to memorise it for my network+. Thank you !! keep up the work !
I love your energy, it helps so much in staying focused!
You are a Awesome teacher sir, I dont know how i felt before studying your course from oreilly, I thought ok .. i can just understand what are the layers ..that's it Iam a sys admin, but with lot confusions in the networking side.... But believe me now in my mind i am feeling very confidence in Networking as a fresher but now i can grasp new things and become expert in Networking.
Because of your classes only i got this much confidence...!!!!!
Thanks a Lot SIR... you are one of the best tutor in networking :)
Great video, breaks things down to get you to better understand the OSI model. By far one of the best instructors on TH-cam for networking.
This video deserves at least 100 million views
Best OSI explanation in the internet.
Fantastic 30 Minute Crash Course on the OSI Model! I'm a complete newbie to Data Networks, this will definitely be useful for my upcoming course on Telecommunications! Thank you so much! Please Do Not Throw Sausage Pizza Away! Love it!
ive been aware of the all people seem to need data processing but i had no idea about please do not throw sausage pizza away! lol. thank you!!!!
I'm trying to have energy levels like this man.
Great video, amazing presentation.
Kevin thank you for your excellent and asome explanation on the seven layers of the OSI Model.
This is the best video I have ever seen describing the Osi model. Thank you so much 🙏
The best OSI model explanation ever. Thanks for the content Kevin.
Best Breakdown ever on this topic. Thank you
Just watching this video. I love the lego usage and the real explanations of things. Great Job! keep up the good work!!
I agree with everyone, this is the best explanation bout OSI layer ever. I'm glad I found you. Now I can say , I am ready for the test. 👍
Thank you for this explanation I nearly thought it would be impossible for me to understand
Thank you sir finally I got a complete idea about OSI model.
Please make a video on TCP/IP protocol.
Thank you so much for your video. It was a really good refresher on the OSI model. You are very good at explaining technologies.
Thank you Kevin. I really enjoyed your presentation. Looking forward to more of your presentations.
Nicely put especially the misunderstood Application Layer
Greetings from Brazil! Very well explained, thank you so much.
Honored to have found this video honestly!
This guy’s voice is really beautiful
NCTI! SO Difficult...best OSI explanation ever.
Great Video! Really helped break this down for the CISSP exam.
Kevin really knows his stuff. The overly technical examples kind of got me lost because I'm just starting out in Networking / Cybersecurity. But after I learn some more I'll revisit this video. If you love the very technical examples I'd say go for it if you are just need a basic foundation. I would check out Eli the Computer Guy. And then research some more OSI information and then once you have a basic foundation come back and check out this video. I feel like you will be able to get a lot more out of it since you understand a lot of the examples. Just my thoughts. I have zero experience with networking (X-want-be programmer turned Cybersecurity).
Cheers Mate. Looking forward to TCP/IP Model deep dive too from you please. Cheers.
Very useful, takes me back to class and even further back to the dinosaur networks I first learned on. Thinnet/10Base2 … was so clunky by more recent standards. Rings?! Ugh. Will it work today? Who’s changing what?
Greatest network engineering video ever
Thank you sir, your expertise on this is top-notch.
Great Respected sir.
Alot of Respect from Gilgit❤
I hear "Please Do Not Throw Sausage Pizza Away" and I immediately know this man means business.
Best OSI model explaination i ever heard
God bless you
best explanation ever.
Love this clear concise explanation of the OSI model.
this is one of the best videos to understand osi layer you da best keep up