Today's RJ is seriously pissing me off. Stupid ying yong aka maid. Wad kind of fucking RJ is this?

You have learned the 7 OSI network layers. Please state the network devices or servers that are used for layers 2, 3, 4, and the application layer.

Like wadd the fuckkkk???? AGHHHHH. PISS ME OFF. I'm just gonna put Internet Routers, Ethernet router as my answer.