$3\mathrm{.}2$ List and briefly define the possible states that define an instruction execution.

$3\mathrm{.}3$ List and briefly define two approaches to dealing with multiple interrupts.

$3\mathrm{.}4$ What types of transfers must a computer$$s interconnection structure $($e$.$g$.,$ bus$)$

support?

$3\mathrm{.}5$ List and briefly define the QPI protocol layers.

$3\mathrm{.}6$ List and briefly define the PCIe protocol layers