Road To 200 OCR A Level Computer Science Resources: TCP/IP Stack Presentation

As Salamu Alaykum Wa Rahmatullahi Wa Barakatuh World!

Here's resource # 184 which is the first resource on networks. It's quite useful actually. OK not quite, but it is semi-useful as it covers some of the stuff you actually need to know and other stuff which you don't. Make sure you know the difference so you don't spend time learning unnecessary content. 

Here's the link: TCP/IP Stack Presentation

Hope this helps!