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What is the OSI Model and is it Still Relevant?
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- Опубліковано 9 лис 2020
- Understanding the Open Systems Interconnection (OSI) Model is crucial for an IT career. Not only does it come up in several certification exams, but it can help you conceptualize how real-world applications work end-to-end.
In this video, CBT Nuggets trainer Keith Barker (@KeithBarker) covers three important aspects of the OSI reference model: what is it, how does it work, and how can we use it?
Read the full blog post here: blog.cbt.gg/mzh
Not a CBT Nuggets subscriber? Start your free week: cbt.gg/2I5NxY1
#networking #osimodel #tcpip
Keith you are the best IT instructor that I've come in "contact" with; you understand your subject matter well - this is testament in the manner in which you explain...a fan forever.
Thank you Tumo! I appreciate that. Happy continued studies.
This is great! ultimate demystification of what and why the osi concept exists and what its relevance is today!
I have studied the concept for over 5 yrs and this is the most 'laymen' acceptable way to show the OSI's current relevance.
10 on awesomeness of explanation.
We used this channel for studying network stuff in evening school at Belgium. Took us 3 years, 2 days a week from 19h till 22h... Pretty rough after a day of work. The info was good stuff! I like the visualization of all the info... makes it easier to understand. Especially when your 40 (slower brain daaaah) and our native language in class is Dutch... However: speaking slower would be even better lol... (brain needs time to translate English to Dutch AND at the same time understand what was just told... but the time it takes to do that, there are already 3 other things explained lol... so very hard in that way hehehe)
I like how you teach us, doesn't feel like I'm even studying, it's a lot entertaining to watch your videos.
Thank you, sir.
Thank you! All the best.
Wow, that's the explanation I've been waiting for! OSI looked to me like pure academic/abstraction stuff to me until now! Your explanation was awesome!!!
We're glad you enjoyed it, Ivelin!
Of all the videos I've seen covering this topic yours had to be the most helpful. The OSI model doesn't really "click" until you actually use a pack analyser (plus it would've been helpful if my lecturer explained why we were ignoring layers 5 & 6...). Thanks.
very underrated video! Great info and well put together 💯
Ohhh gotta thank you for your great videos on nuggets helped me pass my a + now doing network +! this is a spicy learning curve but fun!
Great to hear Alexander, thank you! Enjoy the journey!
Greatest OSI model lesson! Thanks'
Super fun and informative. Top flight content!
As I recall it, the OSI model was concocted when the 'experts' thought in terms of a rigid architecture that would be heavily specified from top to bottom. They didn't imagine an unspeced upper layer that allowed for innovation . But for years we had to memorize the 7 layer model even though it wasn't used in practice.
Super informative stuff! Thanks for all you do. I have watched a ton of videos about this lately as I’m studying for my Net+ test. Every single video I’ve watched has said that the OSI is obsolete and not used. Why is it still referenced and on the test? Thanks again!
what really helped me remember the order was this. Please Do Not Throw Salami Pizza Away 🙂
Thank you so much for this video :)
WOW! You cut me deep. Were my comments not good enough for a heart? LOL
Boom, HEART! :)
Wow thank you so much sir for this I appreciate 😊
Our pleasure Alexis, thanks for the comments.
do you think the Session Layer is not present anymore...
?how about SSL, TLS and other session oriented protocols...
this protocols work initiating/maintaining/ending sessions...
the part of the stack that never make much sense to me (in the real world) was the presentation layer...
I would also like to hear your thoughts about the historic part of this layer...
I like to live on the edge by using UDP/IP instead of TCP/IP. Especially if I'm making a support ticketing system 😆
Excellent
Needed this studying for net+ and I'm just not understanding much
If I open Chrome and log in to my UA-cam account, and then I open a private browser via Chrome and log in to my friend's UA-cam account, then does the Session layer distinguish between data that is sent to and from those two different types of Chrome browser windows?
Is OSI 7 layer and tcp/ip considered under the heading of “computer organization and architecture”?!
I should have had this video during my engineering
*X = 5*
Great call-back to the shirt. Thanks for making me smile!
Radia Perlman talks about the model as layers 5-7 as "boring" during her lectures.
5 meters
You are great instructor but you are talking too fast. Can you please slow down a bit?