Using these videos as pre-reading for a university computer science conversion course and these really are an absolute life saver. Topics are explained in such s useful and concise way, and giving serious kudos :)
Could you do a video on the types of cables (CAT 53/6, Coaxial, Fibre-Optic etc) It's in my revision book for OCR but not very detailed and I can't find it on your channel. Cheers!
They are kind of two separate things - Ethernet is just a protocol (though we do have physical Ethernet ports of course), and a packet based on this can be transmitted over either type of cables
Am I correct in thinking that outbound requests are assigned a public and private port on the public and private IP addresses, so when a packet returns by the public IP address with the port, the Router converts it into the local IP address with port, which is used to add the corresponding MAC address, from where the Switch forwards the packet to the PC the request started from? This gnaws on my mind, could someone explain it if I was wrong, much appreciated
You have to be a little careful because there are lots of technologies that work through this whole process, but that could be right, depending on the context! Ports are for identifying applications so aren't related to IP addresses until they are combined into a socket address. The MAC address is what a switch uses to send to the correct network segment - it doesn't mean anything to a router, and would be included in a frame. If you're doing GCSE this is way above the level required btw!
Computer Science Tutor, thanks for the response, clarifies things a little for me And yeah my friends told me as well, but it's pretty interesting tbh ahaha
It'll happen eventually, but it's probably not as significant as when IP addresses ran out (IPv4 --> IPv6) because MAC addresses are only relevant on a small, local scale
Just to add on to CST; if a manufacturer runs out of MAC addresses (identifier FF FF FF), they just start from 00 00 00 again. It's fine because as CST said, MAC addresses are only relevant on a local scale. Very unlikely for 2 devices on the same network to have the same MAC address.
Using these videos as pre-reading for a university computer science conversion course and these really are an absolute life saver. Topics are explained in such s useful and concise way, and giving serious kudos :)
why did i take computer science
good luck for tomorrow though!!
abi thank you, i will need it
i d k hope it goes well mate, luckily the exams are done in the first week so we don’t need to worry about it after Thursday
RiOT P4NTH3R 03 yeah thats true, hope the exam does go well
i d k did it go well????
Could you do a video on the types of cables (CAT 53/6, Coaxial, Fibre-Optic etc) It's in my revision book for OCR but not very detailed and I can't find it on your channel.
Cheers!
anyone cramming these in before paper one tomorrow hahah
Yep
Yeah
@@Rbourke176 Any good videos for Software Design & Development?
Legit my paper is in 2 hours lol
when your teacher sends you a video to watch for homework but you just read the comments instead
I’m literally doing the same
Indeed, I am very bored rn.
doing the exact thing rn lmao
Now that's some nice WAP
Joe mama
oh
lol
weird guy
@@ImPrettyHomeless look at your pfp.
GCSE'S IN AN HOUR YAAAAY
Hi can you help me out ?
how did you make your channel banner please
now from the top make it drop , thats some WAP 😍
tf wrong with u ?
paper 1 tomorrow wish me luck !!!
Are Fibre Optic cables and coaxial cables examples of Ethernet cables?
They are kind of two separate things - Ethernet is just a protocol (though we do have physical Ethernet ports of course), and a packet based on this can be transmitted over either type of cables
Am I correct in thinking that outbound requests are assigned a public and private port on the public and private IP addresses, so when a packet returns by the public IP address with the port, the Router converts it into the local IP address with port, which is used to add the corresponding MAC address, from where the Switch forwards the packet to the PC the request started from? This gnaws on my mind, could someone explain it if I was wrong, much appreciated
You have to be a little careful because there are lots of technologies that work through this whole process, but that could be right, depending on the context! Ports are for identifying applications so aren't related to IP addresses until they are combined into a socket address. The MAC address is what a switch uses to send to the correct network segment - it doesn't mean anything to a router, and would be included in a frame. If you're doing GCSE this is way above the level required btw!
Computer Science Tutor, thanks for the response, clarifies things a little for me
And yeah my friends told me as well, but it's pretty interesting tbh ahaha
I don't understand about IP addresses , I don't understand how they know where to send the packets if multiple people can have the same IP address
No one has the same IP address but we do share some Ports.
Who else has their gcse today 😂😂😂
....from the top make it drop....thats some WAP thats some WAP
School's version of WAP smh lmao
what about modems do we need to know about them
Not for OCR, if that's the board you're doing
do we have to know about hubs for OCR???
yeah
So what if they ran out of unique MAC addresses?
It'll happen eventually, but it's probably not as significant as when IP addresses ran out (IPv4 --> IPv6) because MAC addresses are only relevant on a small, local scale
Just to add on to CST; if a manufacturer runs out of MAC addresses (identifier FF FF FF), they just start from 00 00 00 again. It's fine because as CST said, MAC addresses are only relevant on a local scale. Very unlikely for 2 devices on the same network to have the same MAC address.
Who else is watching this 3 hours before 😂
me lmao good luck
Harp haha thx, u to
gcse today
42nd( i think)
checkmate