Understanding the OSI Model - CompTIA Network+ N10-009 - 1.1

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IT professionals use the OSI model as a common way to describe network operations. In this video, you'll learn about the OSI model and how each layer of the model can be applied to practical networking.
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FOLLOW PROFESSOR MESSER:

[MuseZach]

Not even joking. I literally passed my A+ core 2 yesterday so the timing for the new Network+ videos couldn't be more perfect. I greatly appreciate all the work you do Professor, especially getting all the content out 2 days before the test even releases. What kind of sorcery is this?

[dannygcreates]

Hello Professor Messor

If you are reading this, I just wanted to say from the bottom of my heart thank you for your videos and your help with certifications such as the A+. I purchased your practice tests and watched your videos as I studied this year for the CompTIA A+, and I'm happy to say I passed and now have my A+ certification this year. I am now moving towards Network + to gain the trifecta.

Best Regards

Daniel A. Gonzalez

[okennym]

Took a few days off after completing A+ now onto this. Here we go again!

[robertoperez]

"Please Do Not Throw Sausage Pizza Away" this help me memorize this OSI model real quick

[randar]

Here we go again. Just finished my A+ with nothing but Prof Messer's videos. I'm hoping to do the same again with Network+.

[liamheffernan]

Passed my Network+ about 3-4 years ago...passed my sec+ to renew them and studying for my ccna now ..these video will come in handy to refresh my memory

[tonioval]

I just got my A+ and ready to keep learning. Thank you professor!

[vaproxia]

Endless thanks prof. Providing free education is saintly.

[braumski]

Man, I watched a couple of videos and came out with so many questions, but you saying that its just a model and to not get wrapped up in the details helped me.

[jbagga]

Just passed N+ the other day thanks to your 008 playlist. Can't thank you enough for the amount of content you produce, will be using your Sec+ stuff next.

[MikeCodes]

This was an awesome short and very clear overview of the OSI model. I'm currently studying the OSI model as part of my cybersecurity studies. This short video bt the awesome Professor Messer really cleared up this subject for me! Thank You so much Professor you are The Best at simplifying topics such as these for the new student!

[DomnickK]

I thought we utilized more of the TCP / IP model than the OSI? Further point towards the last quarter of the video when summarizing the packet capture.

[SunWoodMC]

You missed the layer where most problems occur. Layer 8

[dyneriangray]

I actually passed my sec + now I’m doing net +backwards

[clintonrazmpour]

I use the term “Please do not throw sausage pizza away” to remember the OSI model

[floofyotter]

I feel like the OSI model is an academic construct, not truly used in practice.
I only come across "networking" with in and in between each layer of the computer stack (iaas/paas/saas)

[nonuka]

can we do comptia security+ without having practical knolwedge of networking or comptia network+ .
please suggest sir .

[stephennolan]

I recently bought the previous network version study book. Am I okay to keep studying that one or do I need to switch to the new material?

[mirianjimenez]

Would a VPN fall under layer 2 or layer 4?