Comments by "Javier Flores" (@JJFlores197) on "how the OSI model works on YouTube (Application and Transport Layers) // FREE CCNA // EP 5" video.

  1.  @N111-y8j  Apple doesn't let you do that. There was a version of aircrack-ng available for jailbroken devices, but I don't know if that even works anymore. These types of tools are usually not available on iOS devices. Apple has a lot of restrictions.
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  2. You'll need a degree in computer science and hardware engineering to understand every little detail.... Good luck. I mean if you want some info, look up Ben Eater's videos on YouTube. Its almost impossible to truly understand how all of this works at a very in-depth level. Very few people truly understand exactly how computers work at the component level and low-level software level.
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  3. And what exactly is your 2nd question? I'm not quite sure what you're trying to ask.
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  4. I think its a decent resource. There's still a ton of information he hasn't covered, but its a decent starting point. This series is primarily meant for the Cisco certification, but there's still a lot of concepts he hasn't even approached.
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  5. There's something called a network stack which is basically the programming and code that makes the network portion of a computer system work. That's usually outside of the scope of these videos so they don't go deep into how it works.
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  6. Maybe, maybe not. Certifications aren't guarantee for getting a job, but they can help. CCNA is not exactly an entry-level certification. If you're going for the CCNA, you should ideally already have some general IT knowledge and experience.
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  7. I'm not really sure where you heard that, but it isn't true. Layer 7 is the application layer- those are things like your web browser, online game, or file server etc.
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  8. This is not the full course. I don't know if he has plans of actually finishing the entire videos. With the current videos, there is still a lot of information (and I do mean a lot) that he hasn't covered, or if he did, it was brief.
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  9. Don't get your hopes too high. NetworkChuck still has a lot of work to do for this video series.
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  10. Yep. I fully agree. I took a few Cisco courses years ago at a community college. The instructor was pretty good. She gave a lot of examples, but they weren't really tangible. The hardest part for me to grasp (other than subnetting) was the physical infrastructure of how routers and switches and patch panels, etc are all laid out. It wasn't until my 2nd IT job at a school district that I started to get more hands-on work with the network infrastructure that I started understanding a lot things.
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