Read chapter 5 of "IA-32 Intel Architecture Software Developer's Manual", Volume 3: System programming guide; you can skip sections 5.7, 5.8.2, 5.8.3, 5.9 and 5.12.2 since they are not particularly relevant to lab 3. Be aware that terms such as exceptions, traps, interrupts, faults and aborts have no standardized meaning.
Assignment: Nothing to hand in!