Common Network Ports - CompTIA A+ 220-1101 - 2.1
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- čas přidán 14. 06. 2024
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Professor Messer’s Course Notes: professormesser.link/1101notes
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We use port numbers to differentiate between applications as they traverse the network. In this video, you’ll learn which port numbers are used by some of the most popular protocols.
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If you are watching this and are worried about passing, just take a break and come back (like a day). A good way to deal with this is to learn each chapter separately as parts, it will give you some enthusiasm to do this. Specifically, being able to recognize progress by using things like flash cards. You would be surprised to see just how much you retain when you use recall rather than blatent memorization.
Also remember its okay to just bullet point the info under the main overall subject. This isn't something one should unless you have a photographic memory the average person shouldn't expect themselves to just absorb these network details with one walkthrough. Its okay to pause and go back to make sure you got the details right.
@@MJSGamingSanctuary I take notes from here, I pause often and will go back and reiterate something to myself in them, or add details or little mnemonic things here and there. Before I start a new video I'll leaf through my notebook and skim over the previous stuff. And if I'm bored at work I'll start the playlist over on my phone and listen while I do other things, to sort of cement it in as another go-round or subliminal background noise or a reminder of why I'm escaping the jackassery at my current job.
@@princessakhana Oh I do the same I just find bullet pointing can keep the main details a little less cluttered was my only suggestion.
Ever since middle and high school my largest annoyance is when my notes turn into a blob of text and then I find it intimidating to go back and review. 💀
Ive been writing everything down in a notebook. It helps me remember a lot of it and understand it. Not quite perfectly, but its better then just watching the videos alone.
Yes, I've rewatched this video several times already. It helps to have ChatGPT explain every protocol in each slide in more detail. Doing this, I now understand them better and can distinguish between them more. I wouldn't imagine being able to retain the information without doing so, even if we'll be going into it more in Network+.
I've completed an 800hr Cybersecurity Bootcamp, completed Googles Cybersecurity Certificate Program and have been Studying material from a 40+ hr Udemy Course to take my Security+ exam and this is the first teacher that has taken the time to legitimately explained in detail the purpose of ports and has given the learner an in depth rundown on what each common port is used for.
No knock on the other teachers, but after watching this, I really feel like veterans in this industry sometimes fail to remember or consider one major thing about many of their learners.....we have no idea what you're talking about! Lol thank you for helping us UNDERSTAND rather than taking the easy way out and just throwing information at your learners. You're a solid guy 😎👌
Hi.. I am also preparing to get into a SOC Analyst role. I completed a SOC certification ..I come from a NON-IT background and finding it difficult to comprehend to a lot of stuff in Networking specially.. Any tips or references to understand things better to clear an interview ?? As only watching videos is not helping to answer question that were asked in the interview.. Looks like the videos are Just a tip of the iceberg!! Thank you.
@@user-he2np4yf4q do you remember any of the questions
@@user-he2np4yf4qJeremy's IT Labs, there is nothing better for networking
Man I hope I can pass the A+ stuff off of your sources, I can’t handle the job I’m doing much longer
You got it bro, stay focused and if you don’t pass the first time review the topics you didn’t score well on and retest asap!!
Good luck. I’m in the same boat. I hate many aspects of my life. Hopefully, passing A+ will help me move towards a better way.
Dude same. I'm in IT school right now because I hate my current job. Good luck to you! 💕
Wow same! I'm desperate now! Did you pass?
Good luck brother, stay strong
Just took three pages of notes on this one video.
its the only way lol
I like that you put the ports in order.
for the first time, i was able to understand the ports
Got my A+! I started a homelab and immediately found myself modifying SMB services and using SSH to manage headless devices! All your lessons helped me understand what I'm working with more clearly, thanks.
Howd you start one?
@@edwinmactal2079 I would like to know as well. Just a router, switch and a laptop/computer?
What other resources did you use to prepare? Did you use just these videos, or other material as well?
this is actually really good, I'm using this to get a refresher after graduating in 2018 and this is a lot of the stuff i went over in my college classes
Just changed my passion from programming to networking, i'm learning the basics from these videos. This 14 years old boy learnt a lot from you, thanks Professer Messer❤
This is the video I have watched the most haha, had to go old-school and make flash cards to memorize these.
Wow, this is a lot of info to take but it's fun and I'm learning new things. Thanks Professor!
Are we not going to talk about how good that cheese looked
I just failed today on compt tia a+ 220 1101 at a score of 635 and i needed to get 675 i was soooooo close, going to use these videos to re study
So close! Are they asking for A+ in the UK?
Did you retake the exam and pass?
@@Ivan-nd6qy yes I did
congrats to you! any tips you can give to remembering the networking objectives for 1101?@@bretsinclairofficialuk
@@bretsinclairofficialuk hey, you only restudied the videos that on youtube or you had to study somethinf else?
Professor Messer,
First I want to thank you for putting this all together. I can't imagine how time you spent on all this.
I am a Help Desk Technician and was wondering what is meant by ""usually multiple DNS servers are in production." I am thinking that it means that since the services that DNS servers provide are so integral, that it is very common for a network to have multiple DNS servers in your network for the sake of redundancy and if one goes down. Is this a correct translation? wink!
yeah, and also different types of DNS servers. you might have a mail server with an MX record that gets company addresses to specific IPs.
Greatest thing I learned from this video: to say dub instead of double-u to save a few seconds. As a computer engineer, I appreciate this new found efficiency.
Obsessed w this channel
Thank you 🙏
Thank you again!
Seems like some network ports have been reduced from the previous exam version?
When configuring SNMP for a device is there ever a good reason to use versions 1 or 2 over 3 since the third is encrypted? When it comes to file transfer what is the difference beween FTP and SMB? Are they interchangeable?
I really want to watch and participate in an active live 1101 study group by Professor Messer and ask these questions but my work schedule is getting in the way.
Only reason people would ever use V1 or V2 is if speed and hardware usage is an absolute deal breaker and if communicating over secure networks (but this kind of defeats the purpose of remote monitoring anway lool). From this video, my understanding is FTP allows for communication between devices regardless of the OS but SMB is only used between fellow Windows OS devices
thanks for your videos! re-watching clips before test. Question- Why is SMB protocol used to transfer files instead of FTP? (FTP is literally for file transfers but SMB is the one that is used to communicate and send files between devices. I don't understand why or when it would be used then.)
ftp is used more between servers and clients, whereas smb is more locally used for file and print shares in your own network.
I dont mean to be rude or anything, as we are all learning here, but i didn't know at first and popped that question right in the ole google for a concise answer. good luck on your studies, my exam is in less than two weeks.
@@trevikk37 Thank you for that answer. And yes, fair enough - I should do more googling. Just figured I'd ask here and get a layman's explanation since its on topic as well for anyone else who comes across it. Which you definitely gave. Good luck on your test btw! I passed using the practice tests from Messor and Deancyber- totally worth it.
Guys I went to the comptia website to book the 1001 test but among the languages it is not showing english? do you know why?
1101 is the current one test. Make sure your on the right website. 1001 expired last fall.
super dope... thanks
Yup
I recently failed Comp tia part 1 exam with a 629 score. Now I only have 3 weeks to study for part 2 of the exam. What's the best method for studying for part 2 with only 3 weeks left in the semester? Thanks
Did you pass?
Someone answer this for me, please. In the section on SNMP, he says it uses udp. I thought that protocol didn't have encryption, so how does SNMP v3 have encryption?
Neither TCP or UDP support a native method of encryption, so the higher layers would be responsible for data protection.
Why does DHCP use 2 Port numbers 67 & 68? How do we determine which protocol is used (TCP or UDP) for the above? The questions were asked in an Interview and due to lack of knowledge I was unable to answer them.. I am from a Non-IT background and trying to get into IT.. I would really appreciate it if you could help me with the above questions...Thank you
UDP port number 67 is the destination port of a server, and UDP port number 68 is used by the client
@@omaimakhoudane1298 Thank you for the response :)
Guys should I purchase CompTIA certmaster would it be useful?
I’ve purchased the CompTIA a+ certmaster it’s not good
Do you know any other places I can study this ?
@@youngskeamz7270 check out messer's website, hes got notes and a book as well i believe, also he has practice tests
I'm reading that port 25 for SMTP is outdated and now the default is 587, is this not true? 🤔
Port 587 is for SMTP Secure (SMTPS) port 25 is still used for SMTP
SMTP uses port 587 usually though
leaving this comment in case other people are wondering as I was confused when first reading this comment;
the objectives for 1101 show port 25 for SMTP so that is why only port 25 is mentioned. Personally im just going to remember port 25 for the time being.
587 is the newer standard. It can be secured.
That is with SSL. Comptia tests without SSL, it’s been helpful to know within my career
Hey, Providence!
Oh boy. I'm starting to think I can't do this after all. But I also can't keep going at my current job. Panicking a little.
How'd everything go bro? You okay?
Is there a reason why in the early 70's they changed from calling them Sockets to calling them Ports? Why the term "port"?
A port refers to the TCP or UDP identifier. A socket is the combination of an IP address and a port number.
For example, a web server uses TCP port 80 to provide web services. If the web server IP address is 192.168.1.10, the socket would be the IP address and port number combined, or 192.168.1.10:80.
This is intimidating, not gonna lie. My brain keeps wandering off as it seems too much to take in.
I got the Success bundle, but I'm getting stuck thinking this is too complex and too much to learn. I hope the concepts repeat over the rest of the course, so I can solidify the information. Otherwise, I find myself wanting to give up.
Please give me some encouraging words.
U got this bro.. Taking the 1101 tmm, wish me luck!
@@jelanirichards8156 how did it go brother?
@@rm4185 I passed!!!
@@jelanirichards8156 Congrats!! Im taking mine next month
@@donnycalstudios Thanks! & Good Luck 👍🏿
Wanted to come back to this video to say thank you for these wonderful videos but also…
Will you be my dad? 🥹
Messer senpai?