Free CCNA | OSI Model & TCP/IP Suite | Day 3 | CCNA 200-301 Complete Course

In this video you will learn about two networking models, the OSI Model and TCP/IP Suite.

In this FREE and COMPLETE CCNA 200-301 course you will find lecture videos covering all topics in Cisco official exam topics list, end-of-video quizzes to test your knowledge, flashcards to review, and practice labs to get hands-on experience.

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0:00 Introduction
1:10 What is a networking model?
2:24 Networks without standardization
3:23 OSI Model
4:19 OSI Model - Application Layer (7)
6:46 OSI Model - Presentation Layer (6)
7:39 OSI Model - Session Layer (5)
8:12 OSI Model - The Upper Layers
9:14 OSI Model - Transport Layer (4)
10:50 OSI Model - Network Layer (3)
12:27 OSI Model - Data Link Layer (2)
14:20 OSI Model - Physical Layer (1)
15:52 Protocol Data Units (PDUs)
17:06 OSI Model Acronyms
17:51 TCP/IP Suite
18:45 OSI Model vs TCP/IP Suite
21:02 Data Flow
25:12 Quiz 1
26:57 Quiz 2
28:24 Quiz 3
29:55 Quiz 4
31:20 Quiz 5

#cisco #CCNA

[shatteringstar]

Thank you Jeremy for helping people like me that don't have all the money to spend on expensive courses, you're a life changer

[Devaswe]

'Please Do Not Throw Sausage Pizza Away' sticks with me better. Thank you for your valuable lecture. Really appreciate your efforts.

[donttreadonweeee]

I've been a network engineer and in Network Operations for 15+ years. This is by far the best resource I have found for studying CCNA. You also explain concepts (OSPF, BGP) that I even didn't fully understand in a very concise and understandable way. Thanks so much for your work on this and making it FREE!!

[migo]

I swear to god what I learned from your videos especially this course about network layers, are more useful than my 3 years network study in my university back at home. Thank you Jeremy 🙏🏼

[vrsnnvi]

This is definitely the best explanation of the OSI and TCP/IP models. Good job!

[MrEsquiaqui]

It's impressive how you used acronyms just to give us multiple ways to learn even though you don't use them yourself. I really appreciate the work you put into this.

[edgardivi]

I've checked out a bunch of sources on the OSI Model and I have to say, your videos are by far the clearest and most thorough. You really have a gift for teaching Thanks a lot for sharing such great content.

[-bljq]

this is the second round to watch the whole series by Jeremy, still believe this is one of the best.

[CrazyEddieization]

Hey Jeremy! Thank you so much for these videos! I passed the CCNA today pretty much only using your videos as my study material. Huge props for the course.

[teets]

Just started my CCNA journey. I just wanted to say thank you to you Jeremy for putting all this out for free and taking the time to explain every thing in such great detail. You're a legend!

[Beef-hv]

For those needing help remembering the Protocol Data Units (PDU's) for example segments, frames etc... Remember this mnemonic: Don't Some People Fear Birthdays?
Don't (data)
Some (segment)
People (packet)
Fear (frame)
Birthdays (bits)

This helped me remember it.

[rogersblog]

I can't believe that am now a fully Certified CCNP ENTERPRISE ...Thank you Jeremy because the all journey started from this free course last year

[cortexvanish]

I've learned the OSI and TCP/IP probably in 5 different environments including college courses and this is the first time that I have ever truly had it explained in an way that I can remember and understand. Thank You so much!

[mubaraka]

This is the best CCNA content I have seen so far, it is really amazing the way you simplify concepts. Thanks Jeremy I really appreciate it, please keep up the excellent work you are doing

[dhruvbhatia]

This is one of the best explanation of OSI and TCP/IP models on youtube!

[benreeves]

Thank you so much for putting these up Jeremy. I started my CCNA study last week and happened across your page today. You've compacted my book learning into a really manageable size. The labs along with the quizzes and flash cards are incredibly helpful. We got this, CCNA here I come.

[networkdude]

Jeremy, I have accessed ALOT of different Cisco from CBT Nuggets to PluralSight and so on and so and I can honestly Your videos are perfect IMO. Detailed and to the point!

Great Job!

[abbasrizvi]

Jeremy Im not ccna certified but have been in the industry and managing networks for over 10 years. This is by far the best OSI model explanation Ive seen or heard. Stay blessed my friend. You’re a great mentor with precise information and above all great knowledge. Keep it up my friend. Just awesome !

[AbdullahMahmoods]

OSI Model Acronyms-

People don't need those stupid packets anyway
Please Do Not Touch Superman's Private Area
Please Do Not Throw Sausage Pizza Away
All Presidents Say They Never Did Pot
All People Seem To Need Dominos Pizza

[chrish]

I can't believe this is free, thank you so much for all the work you have put into this course, Jeremy. No only do you describe all the information from each day really well but the extra mile you went with the end-of-day quiz, flashcards and packet tracer projects really help the information stick (because there is a lot!) I'm hugely appreciative, keep up the great work.