Free CCNA | OSI Model - TCP-IP Model - Day 2 | 200-301 | Cisco Training 2020

#ImranRafai #FreeCCNA - OSI Model - TCP-IP Model - Day 2: The Open Systems Interconnection model (OSI model) is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system without regard to its underlying internal structure and technology.
In this video lecture, Imran explains the OSI model and the TCP/IP model. He compares and shows how data flows through the network.
Closed Caption Contributor: Lynda (USA)
Channel Description:
Want to become a CCNA? Cannot find any appropriate FREE video, that is legal? Cannot find any quality video that breaks down the learning process into simple to follow steps?
Well, NetworKing came into being to bring quality training to students for FREE. We currently have a large database of different training videos covering almost all the major certifications in the world. Please subscribe to our KZbin channel to watch the World's best training video, FREE for personal use! Get your CCNA certification in 30 days! Come join us and secure your future in the journey of Computer Networking Career.
Old Exam Code: 200-301 CCNA
New Exam Code: 200-301 CCNA
All our videos can be found on the following playlist:
kzbin.info/aero/PLh94XVT4dq02frQRRZBHzvj2hwuhzSByN
Licensing and Copyright Notice:
Copyright of NetworKing and Imran Rafai. Downloading this video from KZbin would be in violation of the copyright. Users are allowed to ONLY watch this video training from the above links. If you want to download the video, you can buy it by contacting '[e-mail]'.
If this video is found on any other channel, please report to '[e-mail]'.

[@NetworKingInc]

This video and this series are still valid. If anything changes, we will update this series. So happy learning.

[@saadahnaf208]

now it is September 2018, I am learning from your tutorial. please update your tutorial if any update needed.

[@itsentertainment534]

What a video series !! Hats off for you contribution Brother !! As you said that first 3 videos will be the strong base for network carrier . i agree 200% with that. Thank You so much and sharing this knowledge with us. May God Bless you always !!

[@atchg3388]

Dear Sir, Thank you very much for your lecture. I have a better understanding of these huge tones of material. However, I would like to ask TCPIP consists of 4 or 5 layers? In the exam, should we adopt the 4 layers approach or the 5 layers approach?

[@shubhiVerma_]

your tutorial is best and very accurate

[@kevinthomas689]

Sir into how many parts does the transport layer segments the data? 20:00

[@patrickstarshooter5221]

Man! This Guy should be a full time university teacher! Why can't all teachers teach like this?

[@myomyintoo1495]

Sure

[@TheRohel]

I guess, Imran exactly knows where the newcomers' issue could be. He targets those area and adds one or two sentences for explaining that area so that it gets into our head. I am loving his videos. Five fingers of the hand are not the same and not all teachers can spot those weaknesses of the students. I exactly have the same issues with my teacher and that's why using these videos. May God bless Imran!

[@nadraibrahim6400]

@@TheRohel i have a question. As he said that in transport layer, port number is added to the ip address. but afterwards he said that ip addressing is done in network layer.so how does the port number is added to the ip address when it was not even created.

[@TheRohel]

@@nadraibrahim6400 Hi. Your question is very legit (based on the lecture from this video) and I can answer it in 2 different ways - for beginners (easy explanation) and for intermediate/expert level (thorough). I have gone through this video for those 2 layers you mentioned and also read Cisco books so that I do not provide wrong info to you. Please note, the thorough answer will create more questions for you and will require more study for you to gain knowledge about. Please let me know how would you like me to address this question - beginner or advanced? :)

[@nadraibrahim6400]

@@TheRohel BEGINNER

[@ftsthunderflash]

Mr. Imran I love your work! Thank You for sharing all this information and for not being selfish about it. Once again, Thank You!

[@NetworKingInc]

Thanks for your comments. Please subscribe to our channel, like our videos and share them on social media platforms!

[@warrenb7450]

The best CCNA training courses so far I've seen. Thanks a lot for the wonderful tutorial videos!

[@fatah-al-khair]

Hi

[@rushalikamble8280]

Amazzzzzzzzzzzziiiiiiiiiiiiiiiiiinggggggggggggg, i wasted my 2months in searching for perfect YT video for Networking. And found you. Thanksss alot

[@iamjunis6429]

your info is similar to cbt nuggets but the way you break it down is much more understandable in less the time. It sticks, thanx man.

[@NetworKingInc]

Thanks. Stay tuned. Subscribe to our channel, if you have not yet done so!

[@zakaryamalikialaoui333]

So true,

[@architectsbureau7563]

Buddy, Dis vide0 is published in 2013.. is it still Valid?

[@Afro_Updates]

yes

[@GabberHeadzNL]

Mr Rafai nice presentation just started my System and network administration course pre CCNA course and would like to ask you if we can call the processes from 7 to 1 ( App Layer to Physical Layer ) Data Encapsulation and from 1-1 ( Physical to App Layer ) Decapsulation of data? Many thanks for your kind input

[@nipunsachinda]

Please (Physical Layer) Do (Data Link Layer) Not (Network Layer) Tell (Transport Layer) secret (Session Layer) Password (Presentation Layer) Anyone ( Application Layer )

[@NetworKingInc]

Dear Nipun Sachinda, Thank you for your comments. Please like this video and subscribe to be notified of new videos. Also please feel free to support us by shopping from our website: www.nwking.org/shop/

[@abhisheskg6437]

For latest update watch CCNP switch v2.0 and routing..2019. kzbin.info/www/bejne/fpa7homHlr9nl8U .. You will get to know about basic plus theory and configuration.

[@RainMan221]

Please Do Not Tell Secret Password Anyone

[@TheAKBUDDHA1]

Please do not take salami pizza away

[@AlienHazard]

Amazing! But why is 'secret' lowercase?

[@redsoal3251]

Thanks Irman , you are a very good Teacher, It took me a couple of chapters from my resource book to get this but u summed it up well for me in this video. Love your work, keep it up...

[@benatl36]

Amazing Perfect easy soft spoken training lesson, Love the detailed explanation..... Wow! I've learned and understand so much on this training , Thank you!! You're definitely a teacher King in my book.

[@TheJaslanin]

Never anyone explained this so clearly to me. Thank you Imran. Awesome work!

[@im_tofeeq6274]

i was very confused about preparation for CCNA, but i found your channel, the way you taught is absolutely brilliant, i really enjoy your videos. appreciated

[@thanatoicdreams]

I know it's a bit vulgar but I dare you to forget it with this acronym: All ( Application Layer ) People (Presentation Layer) Seem (Session Layer) To (Transport Layer) Need (Network Layer) Double (Data Link Layer) Penetration (Physical Layer)

[@JTST1234]

P for pizzas buddy, who is satisfied with 1 pizza.

[@ShashankDangi-BLEC]

😂

[@kacius9579]

Thank You for everything!! Best of luck for those who'll passe the exams

[@husseinabdi5864]

Your Concise Explanation encourage me to interest CCNA more and more ., Thank you for helpful tutorials.

[@stefaanel]

It is a real gold mine !!! Thank you !!! Thank you for these movies are for free !!!! Not many things are free in this world !!! Thank you !!!!

[@rome27]

Love it love it love! Putting all of these other businesses out of business with their ridiculous pricing for CCNA R&S training. It's a blessing to be able to give back and teach others something you have clear knowledge about. I appreciate this series, and I will be posting here again once I've obtained my certification 👍

[@osamaashraf1618]

Apppreciate your work, need more people like you in this world

[@lalitkumarchauhan813]

thank you so much imran. you are the best teacher on youtube thanku so much.

[@NetworKingInc]

Thanks. Stay tuned for more. Don't forget to subscribe to our channel and like our videos.

[@mdwasim959]

It rarely happens when you listen to 1-2 min of any channel and subscribe it. Thanks for being one of them. You are the best.. thanks.

[@izharahmad4506]

Imran you are avery good teacher. I am 54 year old man ,somehow oneday IP address teased me and I decided to know about networking.Luckily youtube opened your video .It is really amazing, such nicely explained. Thank you so much.

[@sss2393]

Application 7:00 Presentation 9:32 Session 10:15 Tranaport 11:49 Network 15:16 Data link 16:08 Physical 17:28

[@chrisfoster3772]

Thanksss

[@NetworKingInc]

New videos online. Watch from our Playlist: kzbin.info/aero/PLh94XVT4dq02frQRRZBHzvj2hwuhzSByN

[@SUMIT-sy7qs]

I have learned all these CCNA videos of this introduction to cisco network and I can say that they are really helpful and useful to have very solid basis to be able to go ahead. From these videos, I wrote 99 pages in a note book. I really appreciate what Imran did and now is really easier to learn about other videos about networking aspects. Thank you so much Imran :)

[@geovannyvazquez5257]

I just want to say thank you for taking the time to create these videos. I really enjoy how you break things down to a level of simplicity anyone can understand. I really appreciate your hard work. Thanks again!

[@NetworKingInc]

Thanks Geovanny for your comments. Please subscribe to our channel. Like our videos and share it on social media platforms.

[@islanderDrick]

You are the best. I completed CISCO 1 at college and you explained this better than I have ever understood. This is great! Keep doing an excellent jobl

[@NetworKingInc]

I Dricko Thanks for your comments. Please subscribe to our channel, like our videos and share them on social media platforms!

[@shant9016]

NetworKing are you Pakistani

[@shant9016]

And punjabi also

[@SeanLynchXY]

Thank you Imran! I really enjoyed the DEC/IBM history, as I learned to program on a DEC 10 in '77. This was a fun video and a great watch if you need a refresher on OSI! The "top down" approach was new to me, ie instead of starting at the physical layer and going 1-7, Imran starts at the application layer most people are familiar with. Think this would be a great way to learn and will watch the whole series now :)

[@NetworKingInc]

Sean Lynch Thank you sir for your wonderful comments. This definitely is a compliment coming from industry veterans like you. Please subscribe to our channel to get updated of new videos, like our videos and share them on social media platforms!

[@vd7046]

I would recommend these video to everyone who are interested to learn about networking even if they know nothing about it because the way he has made these videos are right from the very basics that anyone can understand without the need of having any kind of technical background......great work sir.👍👍👌👌

[@lindseynanola5795]

I came across to your channel because I'm refreshing my knowledge in Computer Networking way back on my college years and I want to pursue this career now and hoping is still not too late. Thanks a lot for this YT lesson brother.

[@rome27]

Thank you for taking out time to make this very helpful series of videos. I have watched a few other vids, on different channels and so far you are the only person who really took their time to explain things on a level where it makes sense to beginners like myself. Keep up the great work, I have learned a lot just from the first video of this series and I am excited to learn more.

[@NetworKingInc]

Thanks. Stay tuned. Subscribe to our channel, if you have not yet done so! Our official full CCNA Series Playlist: kzbin.info/www/bejne/pGOnYqJjlrJgaNU

[@trnnguyen2410]

Absolutely love your work Imran. Thanks to the subtitle KZbin provides, I can follow your helpful lessons easier. You certainly help me enhance my knowledge a lot. Many thanks :)

[@FrogSpatula42]

These videos are not only informative, they're interesting and deeply enjoyable. Thank you for your expertise, Imran.

[@fabrizioravera2435]

Finally layers explained in a simple way. I'm not new to this, just trying to check out a different way to get what I've already learnt with lectures from other channels and as I commented in the previous video, the way you explain it's amazing. Thank you very much!!!

[@NetworKingInc]

Day 4 is online now. Watch it today from our playlist: kzbin.info/aero/PLh94XVT4dq02frQRRZBHzvj2hwuhzSByN

[@DieOrBlink]

this is the best I have ever had networks and data transfers explained to me. Really looking forward to the rest of the serious and have hope that I will be able to get this certification. Thank you!

[@chibuzoamadi]

God bless you .....With your help I am going to be a good Cisco Network Eng very soon.

[@Doc.Aaftab_Ali]

Great work sir! How understandably you teach us. I never listen any lecturer like you sir. Even I feel lucky because I'm watching all your videos. Thank you for this great cause.

[@roshanishanil1700]

Learning becomes so much interesting ....Thanks man!!!!

[@MegaArnabsaha]

Imran the videos are too good and easy. thanks

[@shivkabhakth3514]

Thanks and Respect you Sir for making this video, actualy the way you explain everything is like some one who removes the darkness of Ignorance from our blind (Inner) eyes by showing of the Light of Knowledge ,

[@mohammedirshad981]

Best teacher best lesson far better than those lecturers in university....Hats off to you man.More than enough to get networking job.

[@darksinthe]

Well explained. I like the way you think and analogize things. Being completely new to CCNA, I have to admit I am a little lost here, but I understood and absorbed 80% of what you said. I'll be watching this video again before I move to 3 :P Great video though, you have a subscriber.

[@NetworKingInc]

+Ben Heintz Thanks for watching. Stay tuned for more. Visit us at www.nwking.org to get updates on our future videos and to download supporting documents for this series. Please subscribe to our channel and like us on Facebook: facebook.com/NetworKingConsultant

[@brunocsish]

Good stuff. Love it. Hope there is more where that comes from. Looking forward for more...much more. Thanks again.

[@NetworKingInc]

Thanks for your comments. Yes we will be making more videos to complete this series. Please subscribe to our channel, like our videos and share them on social media platforms!

[@adeadeoye9064]

Mr Imran, thanks so much for your teaching. You make it understanding by simplifying the way you explain and the use of analogies. keep up the good work.

[@remote_buddy]

Thanks man... The OSI model has always been a tough one for me. Now I get virtually everything better. Thanks for the "All people seem to need data processing"

[@JethBardillon]

Thank you so much. Cisco is easier now.

[@NetworKingInc]

Thank you. Stay tuned for more.

[@rustyjones7397]

You rock Imran!

[@NetworKingInc]

rusty jones Thanks for your comments. Please subscribe to our channel, like our videos and share them on social media platforms!

[@PrinceGhimire]

You are awsome dude!1 really enjoyed your video i'd rather prefer watching your videos than attending lectures now

[@NileshPatel-ef5wx]

Only one word " Thank You Very Much " for this free video on youtube.

[@supravochatterjee3269]

Bruh ! "Thank you very much =4 words.. No offence..hope you have a great day ahead 😀

[@erobos111]

I thought more graphic examples should be given with the explanation. You mentioned many things, via causal interjection, that I couldn't understand. I'll watch again and see if it makes more sense.

[@iliapopovich]

Congratulations,good tutorial,even an a chimp can become a network installer after watching it.

[@NetworKingInc]

+Илиян Попов Thank you. More videos soon. Please subscribe our channel and like us on Facebook.

[@iliapopovich]

NetworKing no thanks,I'll do it when I'll be on a certain level.for now its enough for me,anyway thanks and good luck

[@iliapopovich]

73 31 I can't believe,that a german shepherd can write...Congratulations:)

[@iliapopovich]

73 31 no,I'm not a Russian,but anyway I'll put you in the doghouse in my yard to keep the property.

[@vtwl24]

Very true indeed, I've been watching countless of tutorial videos on KZbin but olafter watching this #TcpIP video, I saw your comment.

[@saleh.alqahtani]

OMG thanks a lot Mr. Imran I wish you are my teacher at Uni. You have summarised the whole semester in 23 mints. I can't believe that. Please continue adding more vids.

[@NetworKingInc]

Thanks Sam for your comments. Please subscribe to our channel, like our video and share them on social media platforms!

[@TheBalahari]

This is very useful to us mr.imran, learned easily from your teaching keep uploading more videos

[@michellesipat4822]

perfect :-) thank you so much!!

[@NetworKingInc]

You are welcome. Please subscribe to our channel on KZbin: kzbin.info Review us on Facebook: facebook.com/NetworKingConsultant/reviews

[@dayakevin9290]

Thanks for your clean explaination bro.. !! waiting for next series...

[@NetworKingInc]

Thanks Daya for you comments and support.

[@paranoidcypriot26]

vhai thank you so much! I m starting my CCNA course and this is helping me prepare studying beforehand. Mashallah you are a great teacher! Im so pleased to come through you!

[@chintakabuddhipala5700]

Thanks a lot sir I learned a lot, I was having a little bit fear about the CCNA now all the fear vanished. Thanks sir great work keep it up.

[@justsay07]

for Public who knows marthi to remember OSI layer.. "Porgi Deli Nahi Tar Saral Palun Aan" UP^

[@nomanul12]

Best tutorial I have seen till date ! Can i download the ppt slides from anywhere?

[@m.mahammadvali9545]

super

[@nigzn789]

this is the most clear and by far the best explanations on networking concepts. very good for people who are starting up with networking

[@qualityquest6783]

Being a novice in Networking, your video session helped me a lot to understand the netwrok layers. completed day 1 and day 2 in one session and got enlightened with fundamentals of Networking structure. - Thanks for wonderful and comprehensive presentation Sir.

[@NetworKingInc]

Dear QUALITY QUEST, Thank you for your comments. Please like this video and subscribe to be notified of new videos. Also please feel free to support us by shopping from our website: www.nwking.org/shop/

[@ajinkyajagtap07]

learned a lot from your video...currently i'm in 4th year of engineering and hoping to become a network administrator..

[@NetworKingInc]

Ajinkya Jagtap Thanks for your comments. Please subscribe to our channel, like our videos and share them on social media platforms!

[@Confusedalien1133]

Did you become a network admin by now buddy ? :D

[@nilmajoypahunang91]

this is awesome!

[@samueluchechukwu4887]

This video is amazingly comprehensive. Big kudos man!

[@clintonndegwa]

Your videos Imran are just amazing, Introduction to CCNA made super easy and understandable. Thanks for being selfless with the information.

[@Simer1003]

your videos are awesome. Are the new videos that much more different?

[@NetworKingInc]

Thanks. Stay tuned. Subscribe to our channel, if you have not yet done so!

[@AnkurAnand]

Better way of Remembering - "Please Do not touch superman private Area" :P

[@neon13x]

That was funny tho ..

[@harshinidodda1970]

Best video ever. Was trying to read OSI model from many references but I couldn't get anything into my mind. But this is a must video to everyone who need to know the OSI model. Thanks a ton!

[@elmestico]

well done, easy explanation, great slides, could i add this plz if u dont mind: Encapsulation and de-encapsulation ===>> The term "encapsulation" is used to describe a process of adding headers and trailers around some data by various protocols. At the receiving end, the protocol stack operates from the bottom to the top. Decapsulation is the process of reversing the encapsulation process. Example, data from the computer A has been sent through Internet to computer B. Application Layer is a layer which user works on, assume that we are sending Mail, the data is now sent to Presentation Layer. Presentation Layer converts the data to ANSII coded file which computer B can understand. Then the data sent to Session Layer and then to Transport Layer. Transport Layer cuts the data in to several pieces and add a Sequence Number to each piece in order to rearrange it properly by the receiving end. Then TCP header is added this encapsulated part is called Segment. Now the segment is sent to Network Layer. Network Layer adds the source IP address and destination IP address in order to route the packet through the internet. In this layer the encapsulated data is called Packet. Then packet is sent to Data Link Layer. Data Link Layer encapsulates the Packet with Source and Destination MAC Address and at the end FCS (Frame Check Sequence) for error checking is also added. This type of encapsulated data is called Frame. Now the frame is sent to Physical Layer. Physical Layer converts the frame into digital signal which can transmit through the Network Cable. Now the data has been sent through the Physical Medium.

[@waleedfaruki8844]

I was having a bit of trouble on that part. Thanks for that

[@waleedfaruki8844]

When he talks about "Acknowledgement", does this mean that a reliable communcation comes back and tells you whether or not your data has been received?

[@CHRISTIAN-ng2qx]

Rachid khan Nice explanation

[@lolhal8920]

someone help me how to process this whole information on models works, i didn't understood clearly.By the way your teaching methods are good but as new bee to this field im facing a bit of trouble

[@thabothantsii2051]

which country are you from

[@alicesharma5533]

how can you be so good. Thankyou so much for making us comprehend all these with ease and efficiency. I am making proper notes from your lectures .Thankyou again for your assistance.

[@scoobysnacks8534]

Imran is the man!!! Imran makes this Cisco Networking understandable. Who would have thought that.

[@MohammedNoureldin]

I think I found a small mistake, you said that the socket is created at layer 4 (but as far as I know, layer 4 doesn't know anything about the IP), only TCP and port, am I right? By the way, you are awsome :) I am very interested to continue watching.

[@NetworKingInc]

Dear Mohammed Noureldin, Thank you for your comments. Please like this video and subscribe to be notified of new videos. Also please feel free to support us: www.nwking.org/support.html

[@qazawatzirak5048]

I was gonna comment the same. Socket is being made at Network Layer not Transport Layer.

[@David-fc8jy]

its not a small mistake imo..

[@VembarasanThambidurai]

Layer 3 uses IP addresses to communicate and Layer 4 uses port numbers for communication. A socket is the combination of port number and IP address. so, yes socket is created at network layer when Packets are added to segments.

[@rkwatchauralnautsjediparty7303]

It's just a way of thinking about it. The IP gets the data to the network, the MAC gets it to the device, and the port gets it to the application session/instance. Since the port combined with the IP address turning the whole thing into a socket is a Transport layer function, most people (I'd wager) tend to think of the socket as being a layer 4 thing. Just think of it from a receiving point of view (layer 1 to 7) instead of a sending point of view (layer 7 to 1). But I see your point.

[@TendsToWonder]

I use All Pizzas Seem To Need Double Pepparoni.

[@Ramel34]

All People Seem To Need Dominoes Pizza

[@sunilveigas869]

Imraan, Nim Tutorials Nodbittu Nim Fan aaadhe Kanri. Your Tutorials are damn Amazing. They are Excellent . Thanks for your Contribution and I wish you all the success.

[@NetworKingInc]

Thanks. Please subscribe to our channel on KZbin: kzbin.info Review us on Facebook: facebook.com/NetworKingConsultant/reviews

[@samkara1271]

Thank you, Imran... The color coding to categorize and associate the OSI and TCP/IP components is brilliant.

[@Bajlaltaurus]

Awesome bro...when will i get next ?

[@NetworKingInc]

Thanks Bajlal. The day 3 video should be online by the end of the day. Please stay tuned. Dont forget to subscribe to the channel. Also share and like our videos.

[@designdaddy4112]

Thank you Imran, you are doing great work by providing such a awesome lectures. :)

[@NetworKingInc]

Stay tuned and like our page on Facebook: facebook.com/NetworKingConsultant

[@Soulwrite7]

These are really quite excellent. Using them as revision of topics, they are helping to crystallize some concepts I was uncertain on. I also love the SouthParkesque toons =)

[@ProModzCustomz]

I really like the way you teach. I’m a beginner and can easily follow you. Excellent examples and great tips/tricks. Thank you for asking the time to make these :)

[@akocisrael]

Hi .. I'm currently watching your CCNA lecture.. I'm not new to network but I'm not also a master of it. Watching this lecture helps me to understand and knows the network fundamentals not just knows how to do or say it but really understands how network flow/infrastructures are working. I'm also planning to take a training and hopefully able to take and make the exam. Currently I'm a System Administrator on my company and really wanted to add knowledge about networking since I know that System and Network administrators should know each jobs ;) thanks again!

[@nannshwezin]

Thank you. My lots of reading knowledge becom to be cleared after listening this.

[@nibedikadhar.official]

It's really the easiest lesson that I could ever get .....Thanks....All the parts are equally easier to understand .... And I must say... very clear speaking

[@NetworKingInc]

All videos of this series can be watched from our playlist kzbin.info/aero/PLh94XVT4dq02frQRRZBHzvj2hwuhzSByN

[@techtutorish]

I have a question: Shouldn't the session layer of OSI be in the transport layer of the TCP/IP suite? That would make more sense to me since in the TCP/IP model it is actually the transport layer that takes care of sessions using TCP or UDP.

[@NetworKingInc]

Day 5 Video Online. Watch it TODAY from our playlist: kzbin.info/aero/PLh94XVT4dq02frQRRZBHzvj2hwuhzSByN

[@danielleaff5332]

Thank you for your videos. Simple, clear, easy to understand. I'm learning a lot.

[@thomasalexie9346]

The best OSI Layer explanation EVER!!!!! you're the best!!!! god bless you!!!!

[@khadimamar3571]

Thank you verry much for your clear and verry understable English i'm french speaking man but this english i understand it perfecly thank you also for course i noted some lessons

[@mmhaji2045]

I have taken cisco during university. Cisco is nice and interesting field.Seriously I love Cisco but in this channel I have learned a lot. Thanks to the great teacher we have here in KZbin.

[@NetworKingInc]

+Duaale Haji Thanks. Please subscribe on KZbin and review us: facebook.com/NetworKingConsultant/reviews/

[@FazilKhan-vr6sw]

Awesome sir i was searching teacher like u at youtube... After watching realized u r adorable...

[@istiaquehussain1208]

This is very good tutorial. Lot of critical topics of networking is explained here so easily, so that i can understand lot of important and critical topics of networking. Thank you so much Imran .

[@APPLYUSVISA]

you are a great teacher and a true network king. powerful!!!

[@mohdm801]

assalamu alaikum sir very good videos i cannot able to pay ccna training i was tense before saw ur videos but i realised now i can also learn ccna with out training fees

[@maamohamed8592]

Perfect really I am a mcse server infrastructure but beginner in ccna. Its very clear, I have finished second day thanxs alot

[@solomonaryeetey7370]

This is the greatest OSI model explanation on the internet :)

[@maheshpachbhai9714]

Really Appreciate your efforts !! Awesome . Thanks !!

[@hoanganh3612]

Your English voice is very clearly and your explanation is easy to understand Thank you very much for upload helpful videos like this!!!

[@Serenade172]

Thank you so much NWking. I went from founding out the Net+ mostly helps people get a freat desk customer service job. to finding out that someone with my knowledge should for CCNA and i have to say i like what i see here already than i did 2 months into Net+. I hope to look forward towards CCNP as that is my next goal after obtaining my CCNA!

[@prashantjadhav4342]

Hello Imran Sir. You have thought us Networking very nicely. You have cleared all the basic concept of Networking. Thank you so much sir. God bless you sir and I wish you a lot of sucess in your life.

[@aashirch9304]

I have never seen anyone explain OSI model in that much simple manner!

[@juliemakhecha7414]

you r jst marvelous. You clear all the concept about networking which is very difficult to learn in less than a hour. Thanks Man.