I took your A+ course almost 10 years ago, and man did you help me. I passed that. As well as the old N+ in 2010. I never did anything in IT. Ended up opening a company in home security. I want to get back into IT at 37 years old. And I must say, your voice after all these years, brings back some fond memories, man. Thank you for what you do. Seriously.
I'm 33 and finishing up my Associates in Networking--these videos definitely help clear up the droning of professor lectures who've been teaching for 30 years
@@kiffar keep it up! I only have a 2 year degree. Been an IT admin for 5 years. I'm pretty much a sys admin but i want and need these certs to keep moving up.
I watched your CompTIA A+ series and was able to pass both test to get my Cert and now I’m starting this for my Net+ I want to thank you for these videos it truly helps!
I have watched and read a lot of content related to A+ and Networking+. I have passed both A+ exams and I recently failed my Networking+ exam. What nobody has ever said about Comptia exams, is that, they are all based around troubleshooting. Both A+ and N+ exams have everything to do with troubleshooting. A+ is help desk orientated troubleshooting. I have never held an IT position by anymeans, only data/electrician job. So, minimal experience with jobs. N+ is quite a difficult exam and requires a specific skill set to accomplish a passing score. I highly recommend setting up virtual machines with specific roles such as load balancer, static web servers, and even a 2 or 3 layer switch. Become familiar with tcp/udp ports and how they function. I have done most of this through linux, more specifically CentOS7, ubuntu 19.04 and of course windows 10. Good luck
Just recently passed the A+ by only using your video courses. Now time to start studying and get this Network+ before the exam expires. Thanks for everything you do. You are literally a saint Professor.
Out of curiosity, did you at all read the text book for A+? Are you saying you only used his videos to study? I am looking to take some other certs just wondering if i need the textbook too
Just started your course. I now have plenty of time to devote to this because I just fractured my neck. Good thing I have an exam voucher. I am really enjoying your course so far. My goal is to be ready to test by Thanksgiving.
Ive watched a lot of your content now over the past week, the videos are exceptional in content, narration, focus and tempo. Thanks heaps for taking the time to make them, tom
Today I start my journey for the Network+ after getting A+ certified using your videos a few months ago. Hoping to get it done before the end of March. I wish everyone else on this journey good luck. Let's better ourselves. I'll update this comment when I take the exam in a little over a month! :)
I'm learning so much more from your videos than the books, guess this suits my learning style more. Accurate and to the point info you are doing gods work.
And so it begins....I recently passed the 1002 and was supposed to take a week break but I can't wait that long. I love binging these playlists and learning new information!
THANK YOU SO MUCH... I am a beginner to technology and your explanations on "how" to envision the process TOTALLY resonated with me and this light bulb went off.
Amazing starter episode, best I've found for networking. One question, why is Source UDP port included in a packet if it does not receive any acknowledgement back from the destination?
Way back when, when I was in a technical training for networking, my instructor summarized it this way: TCP is slow and verifies. UDP is fast and throws data hoping for the best. A good example is VoIP. You want TCP to ensure a good connection is set up, but UDP can take over as you want the speed and some packet loss is acceptable (our minds can fill in some blanks).
TCP and UDP transfer data at the same speed. Neither is slower or faster than the other. One provides verification of the data transfer, and the other does not.
Thank you for your wonderful content! ?Why does UDP use a number above port 1023 as its "non-ephemeral" port. Or is it actually an industry standard, but not actually requiring of a permanent port, like 80, 443, etc.? Thank you!
So in the beginning analogy using roads, trucks, boxes, etc. "IP" is the truck (or method of transportation) and the "IP Addresses" are the source and destination building addresses, is that correct?
So both client and server ports don’t have to the the same to communicate? I thought data had to be sent through the same port number for it to actually work
@@professormesser How does server-initiated communication work in that case? If a server needs to send something like a mail data to a client, which port would it get sent to? Since the client port seem to be generated randomly at the client.
@@anishshetty2305 Servers don't generally send unsolicited messages to a client computer, for the reasons you mention. Your client would send a message asking for the latest messages, and the server would respond over that existing session. For those cases where a server does send unsolicited messages (an SNMP trap, for example), the client computer is running software that's listening for that specific communication over a predefined port number (udp/162, in the case of SNMP traps).
Hi everyone! I have a question about the Internet Protocol. I read on the Internet that the Internet Protocol's part was to fragment a document we want to communicate into tiny parts, add a header to them and that it's responsible for the routing of this content. This last point gets me lost... Do I have to understand that routers, nodes, also apply the Internet Protocol to read the header and select the next node? In that case can we interpret the Internet Protocol as some kind of GPS for the packets to reach their destinations? Or am I wrong here and it's something entirely different? Thanks for reading :) ! And by the way Professor Messer: your videos are great!
The destination port is the port number for the type of traffic being sent. The random destination port is used to determine the response when it is received.
aline uwiragiye It is better to get BSN with certifications. Most jobs require certifications. My friend is currently getting his BSN and have other certifications. He is currently working on getting other certifications. He works for NASA.
Hi Sir my question is when i buy this eBook + labs: only $109 ? i can practice in the lab or is just the book sorry? i am from germany and my English is not so good but the hope you understand what i mean and thanks for the nice job you do thanks so much
TCP is UPS delivering a package you have to sign for. If you aren't there and it's not your name on the box you aren't getting it. UDP is a reckless paperboy. He don't care if it ends up in the tree, on the roof or down your stormdrain. As far as he is concerned, it's been delivered.
