Comment Re:There is a reason for this! (Score 1) 317
If you don't know what a netmask is, you shouldn't be able to pass CCNA (though could get an MCSE or RHCE). I was just chatting with a server admin here and they don't know the difference between a switch and router (almost all switches are L-3 switches, and almost all routers will bridge ports, so is there a difference?).
The functionality can be very similar and the lines are increasingly blurred but the key difference is that switches have ASIC's to do the majority of the work while routers have general purpose processors that do most of the work.