Understanding Broadband Technologies

To all the "perfect" guys that comment here about the mistake on the board (1 bit = 8 bytes) let me break it down to you. If you've watched the video and listened to it carefully you'll hear that he actually says 1 byte = 8 bits, he just made a mistake while writing it, which it can happen to anybody. Also if you've read the description bar you would have noticed that the mistake was pointed out and it has been corrected. So out of 1 hour lecture he makes a single mistake, which he actually corrects it and you just complain about it instead of thanking this man for the knowledge that he shares with us FOR FREE!

School of Eli! This man has taught me more than my degree has, thanks for still being relevant in 2021 kudos to you bro.

Mr. Eli,  I wanted to take the time to say thank you for being such an awesome guy and providing these educational videos for free. I myself am an IT Administrator by profession, I am not very great with networking but I am great with Windows administration and desktop support and know basic networking. I've been watching your networking videos lately and the terminology and depth you go into explaining different concepts and really making sure you drive the point home is great. Thank you so much for providing this FOR FREE! The world needs more people like you, you make my life so much better by doing this great service.  I'm so glad I found your channel and website, it's worth so much and if I ever have extra money (hopefully the education I gain here will help with that) I promise I will donate to you to help you keep pumping out these awesome videos! Sincerely, Dan.

Eli the Great! thank you. You're true,genuine and real SMART guy because you share your knowledge. Real Smart person shares knowledge and explains in a very comprehensive way.

Eli is human after all.........LOL!! Thanks again ELI for sharing your knowledge, you are appreciated!

I just wanted to say thank you.....Eli....I always watch your videos to keep my fresh in the Industry.

Best mentor on YouTube by a long shot.

I love, love, LOVE these tutorials! It's so nice to have a tech guy who explains things properly without being condescending. You sir, are a diamond.

This is supreme and near eternal humanitarian service. His playlists are for anybody who understands spoken english. Thanks for your sacrifices Eli.

*Basics* (Internet == Cloud) 2:20 1 byte = 8 bits units of information. 4:40 sync vs async download = upload -> sync connection. d!=u is asynchronous. 5:40 LATENCY = TIME time for a packet to reach the other end. Good: L < 30ms. (satellite is >600ms) https://www.whatismyip.com/internet-speed-test/ 9:00 contract plan 10:40 static vs dynamic ip router has 2 ips. you need static for a server. Ask for it to ISP. 14:00 port-service. each service use different default port. ex. 80 (web). 16:00 Service Level Agreement. For business you can pay for a written contract. *Broadband technologies* To carry data from ISP to your modem. 26:00 T1 Was good. Old. Expensive. Can be used for phone or internet. 33:30 Carrier Ethernet Uses Ethernet Broadband Technology to connect ISP to you. 35:20 P2P Point to Point. Wireless but positional/directional. They put an antenna in your house. Sends wireless data to ISP antenna. Move antenna, lose internet/cloud connection. 39:40 LTE Wireless internet/cloud connection for mobile devices 1.5 MB/s speed. Enjoy internet everywhere. Like a wap, with no cabling. Uses cellular antennas. 45:00 Digital Subscriber Line, DSL. Technology offered by Line-Telephone companies. Still up nowadays. Good: you don't share bandwidth with neighbors. No need of new infrastructure. 52:00 Cable Share bandwidth with ppl on the same cable line. No need of new infrastructure. 56:30 Fiber Optic Service (FiOS) Need expensive new infrastructure. 59:00 Satellite Very high latency (>500ms). Speed is fine. Elon Musk is building Starlink.

It's hilarious how much internet speeds have increased since Eli made this video. 50 Mbps and 100 Mbps were considered top-tier high speed lol

I was in tears laughing after the intro! Well done Eli!

Thanks for these awesome videos! I wish they were more up to date, because I'm noticing that a lot has happened over the last 6 years (wireless ac for example), but these are amazing. Thanks a ton!

Hey Eli, thanks for all the effort you've put into these videos, I really appreciate it.

I really enjoy your videos , old classes like this one or new content - used to be daily shows , now once in a while. Keep it coming.

You're awesome Eli. Thanks for the amazing education. long Live. Wishes from India

Bless you Eli. All your videos are still great today!

Although this video is 6 years old the information is still quite relevant. I'm using it to supplement and drill in what I learn in class.

Thank you so much Mr. Eli....We really appreciate your time and consideration.Stay blessed man.

i have to say the detail you cover topics/subjects...... absolutely the best. with excitement too. awesome.