Sort:  

I like the most that video where he explained the S-R Latch (JK flip-flop)

Studied OSI model in my university. But inn this video it has explained with examples which is a nice way to understand

Je te souhaite le bonheur, le bonheur et la longévité dans la vie rockz Ça vaut bien mon vote

Which book are you following?
or what syllabus?

Network layer
Data layer