NETWORK ADMINISTRATIONSsnmp

Common Network Ports – CompTIA A+ 220-1101 – 2.1

A+ Training Course Index: https://professormesser.link/1101videos
Professor Messer’s Course Notes: https://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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by Professor Messer

simple network management protocol

22 thoughts on “Common Network Ports – CompTIA A+ 220-1101 – 2.1

  • 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

  • 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?

  • 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.

  • 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

  • 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

  • Wow, this is a lot of info to take but it's fun and I'm learning new things. Thanks Professor!

  • 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.

  • 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.

  • 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.

  • I like that you put the ports in order.

  • 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.

  • Seems like some network ports have been reduced from the previous exam version?

  • 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!

  • Guys should I purchase CompTIA certmaster would it be useful?

  • Man I hope I can pass the A+ stuff off of your sources, I can’t handle the job I’m doing much longer

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