port numbers can run between 0 and 65 353. that's a lot of numbers to try and memorize luckily for us support numbers from 0 to 1023 are the well-known ports but that's still a lot and honestly I think if I went to Dunkin Donuts and asked the cashiers to start naming registered ports they might maybe know HTTP and that's about it luckily for us a plus exam is mostly interested in a small handful and even luckier is that you found this video to help you memorize them this may go by fast so feel free to bookmark this and come back to it and watch multiple times to get the numbers really cemented in your head I feel like three should do the trick but I'll leave that up to you let's begin 20 and 21 file transfer protocol so just like the years 2020 and 2021 the global pandemic we'd just like to forget that period of time just like FTP file transfer protocol 2020 2021 we'd like to FTP forget that period Port 22 the easiest way to think about this is 22 we turn the twos into S's and we have SSH a more fun way to think about this is two Ninja Turtles on the left two Ninja Turtles on the right two plus two all of whom have shells secured to their back port number 23 this is my personal favorite 23 is telnet so the easiest way I found to remember that is Michael tell it to the net Jordan his jersey number is 23 telnet is 23. port number 25 SMTP simple mail transfer protocol you know just like Santa male transfer protocol which gives you presence on the 25th of December simplemail transfer protocol is port number 25. port number 53 this one might be a bit of a stretch DNS domain name system so in 1953 Eisenhower was sworn into office and registered The Domain in our imagination he you registered the domain name eisenhower.com so just think about it's just I know it's a stretch I couldn't find a more fun one that sticks more if it's easier for you there's also Queen Elizabeth II taking office or the end of the Korean War if this works better for you but again port number 53 Eisenhower sworn into office domain name eisenhower.com DNS domain name system hey I never said these were gonna be perfect I'm just trying to help you learn these ports 67 and 68 DHCP if the dynamic host configuration protocol was only one or two higher it could have been 69 but I guess we wouldn't want your default gateway 69ing with any of your Hardware that would be awkward so it's a good thing they're one to two ports shy of that so the DHCP server can do its job of assigning IP addresses to devices port number 80 HTTP HTTP requests are used so much it runs the port's Ragged which of course is why they look like the Network versions of 80 year old men if that doesn't work for you you can always think of how totally rad you would have been in the 80s if you surf the web with Port 80. Port number 110 pop 3. so think about this like 110 calorie popcorn bags which kind of look like an envelope you could just stick in the mail you know like the email Port 110 POP3 port number 137 and 139 is what CompTIA wants you to know for net bios it also uses 138 as well as another Port but that gets confusing the easiest way I've found is really not the best I think of it this way net bios is one word net three letters net bios seven letters visualizing this datagram datagram this diagram 137 and that it's the other ports right after that it's not perfect but it's better than nothing port number 143 IMAP internet mail access protocol so 143 is also slang for I love you because the amount of letters in each word one four and three so when you want to email someone to tell them 143 I love you you might email them using Port 143 and the IMAP protocol 161 and 162 SNMP simple Network management protocol this one is a bit of a stretch so bear with me 161 was the year Marcus Aurelius became emperor of Rome which is why we see him here as emperor of this simple network with his management protocol he helped make Rome into a network with his management protocol just like the simple Network management protocol with ports 161 and 162 his first years in office some of these are more of a stretch than others port 389 ldap port 389 the lightweight directory access protocol is a directory like a book we'll title it 389 or 389 book of course has to have 389 pages and since it's a a digital directory protocol it luckily didn't get burned down in the year 389 when a lot of pagan libraries were burned port number 443 https hypertext transfer protocol secure these bigger numbers are harder to memorize but you can visualize this as like luggage carrying three locks on it A4 number a four number and a three number just to keep all the web pages in your luggage secure port number 445 SMB and cifs so SLE of course stands for Server message block but also to many of us it stands for Super Mario Brothers so I want you to think of this visualization is that we have the four the four and the five and this way we need that little last one on the five this way Mario can jump over all the rest of those blocks SMB 445 port number 3389 remote desktop protocol RDP so the way I like to think about this this is like a snowman wallpaper so you remote into another computer you see all their stuff you see their funny little snowman wallpaper on their desktop spelling out 33.89 so some of these might be helpful some of these might not help at all but I figure if you remember at least three or four just buy something from this video then it was worth it