1. If all X and Y inputs are high, which of the Z outputs is/are high? 2. If all inputs are high except X and Y2, which Z output is high? 3. If X and Yo are low and all other inputs are high, which Z output is high? 4. If you want Z, to be 1 and all other Z outputs to be 0, what values must the X and Y inputs have? Xo X X. Yo 15 Zo Y Z3 15 150-8 Do-2 Z7 5 N Z Figure 1 shows a NOR-gate crossbar switch. Z4 Y Figure 1. A NOR-gate crossbar switch N 2 25 BDa Do-28 N