Introduction to IP – CompTIA A+ 220-1101 – 2.1

36 thoughts on “Introduction to IP – CompTIA A+ 220-1101 – 2.1”

• Excellent. This video on ports on a network helped broaden my understanding of them.

• Maybe it's because I've gamed my whole life but the port 25565 is all I think about with TCP/UDP. Hosting Minecraft servers for my friends as a 12 year old really came in clutch.

• I have been confused about IP Address and Ports. Watch other videos too, but this was really the best explanation, in my opinion. I can retain the information much better too.

  Maybe it's his voice 😂

• Question: So hypothetically speaking regarding ports and applications lets say you have a server dedicated solely to FTP (I'm aware servers could contain VM's to house multiple different services) would that server only operate out of port 20 & 21?

• I feel like that guy in south park whom's head exploded when they were doing the Chewbacca defense

• So this has to be updated every 3 years? If I smash this exam in a couple weeks it’s going to be good for a year then I have to do it again. Sigh. I’ll do what I have to do. Thank you for making these videos for free. You are a hero Professor Messer.

• why does the bedroom got direct access to the kitchen

• I definitely understand the concept. But what im hung up on is how the computer filters out all the packages. Maybe im getting ahead of myself but in a situation where there are 1000s of phones accessing a cell does the "driver of the bus" have to drive to each phone and get rejected 1000s of times before finding the right 1? And then what? Its just really fast morse code so even if the phone unlocks to receive data its just going to get random date from all the different transmissions. Only thing i can think of is its either only 1 signal is sent at a time and switches very fast or its a specific radio frequency the phone looks for that has its IP being broadcast

• Thank you for helping so much

• professor messer = G.O.A.T.

• Watching for the third time because it is very useful topic😅

• man ive never felt like i was missing out on a job so confidently until i started watching this play list, 90% of the info is stuff i knew. thank you for helping me realize

• Question, when explaining UDP, with no confirmation that data has made it to the other side, why does then DHCP using UDP protocol become responsible for resending the data? What did i miss

• Excellent

• Super informative!

• Wow, I've learned so much in 18 minutes thats crazy!!! This high quality content!!!

• I’ve probably learned this portion 3 times and this is my first time throughly understanding 😂

• Give this guy an oscar

• In 7:38 you say that DHCP is responsible for making sure informatins has been recieved by the other side but that contradicts the UDP rule that DHCP follows. Am I missing something – anyone can help?

• I don't think I've ever gone from "yeah I understand everything you're saying" to "oh my gosh I have no clue" so quickly.

• I’ve always had issue with figuring out ip addresses, this made sooo much sense to me. I love finding people who can make things so clear to me

• This is really well done, I'm happy I found professor messer on my way to the comptia a+ The truck example for IP really helped visualized the inside happenings of IP. Thanks professor

• 7:40 See i thought that DHCP as it uses UDP has no way to verify if information has been received like TCP does. Does the external application pick up on the error and DHCP is just simply a way of resending?

• 🍔🧇🥚🧇

• OK…..That first picture on the start is my home town Veli Losinj in Croatia….weird

• he breaks this stuff down so insane, thanks man

• This was an incredible explanation of IP

• Great analogical examples Professor Messur. Thank you!

• Hello Professor, at the beginning I talked about that DHCP follows the UDP protocol and the UDP protocol when it sends data does not give any attention whether the data is complete or incomplete, and therefore in the minute 7:37‬‏ I spoke that DHCP is responsible for verifying and retransmitting information, can anyone explain me this?

• Professor Messer – the undisputed G.O.A.T.

• please start showing transcript for future videos! would make note taking a lot easier 🙂

• Amazing

• Thank you again!

• Isn't the Comptia A+ for people who are new to IT. Why does this video use terms without introducing the concept of them

• this one has a lot ot take in

• 多謝！thank you for the video! its really helpful!

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