CS401 Quiz No.3 Shared by Ahsan

1. Which of the following IRQs is derived by a keyboard?
IRQ 0
IRQ 1 = Answer
IRQ 2
IRQ 3

2. Which of the following IRQs is connected to serial port COM 2?
Select correct option:
IRQ 0
IRQ 1
IRQ2
IRQ3 = Answer

3. Programmable interrupt controller (PIC) has
Select correct option:
One input signals and eight output signals
One input signal and one output signal
Eight input signals and one output signals = Answer
Eight input signals and eight output signals

4. Which of the following IRQs is used by the parallel port?
IRQ 5
IRQ 4
IRQ 6
IRQ 7 = Answer

5. Which of the following IRQs is a cascading interrupt?
IRQ 0
IRQ 1
IRQ 2 = Answer
IRQ 3

6. Which of the following pins of a parallel port connector are grounded
10-15
18-25
25-32
32-39

7. Which of the following IRQs is used for Floppy disk derive?
IRQ 4
IRQ 5
IRQ 6 = Answer
IRQ 7

8. When two devices in the system want to use the same IRQ line then what will happen?
A) An IRQ Collision
B) An IRQ Conflict = Answer

C) An IRQ Crash
D) An IRQ Blockage

9. The parallel port connector is called ?
Select correct option:
DB-25 = Answer

BD-25
DB-24
BD-24

10. IRQ is referred to
Select correct option:
Eight input signals = Answer
One output signal
Eight output signals
One input signals