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1. When accessing the system bus via the expansion slot, the plug-in card must i

ID: 2085183 • Letter: 1

Question








1. When accessing the system bus via the expansion slot, the plug-in card must interfere with the working of system buses on the motherboard. a. True b. False 2. In edge-triggered mode, 8259 will latch another interrupt until the IRQ input goes back to high. a. True b. False 3. The advantage of edge-triggered mode is false interrupt caused by a spikes as a result of noise on the IRR line-especially in high-speed systems a. True b. False 4. In buffering, the data bus is accessed only for a specific address range, and access by any address beyond the range is unblocked. a. True b. False 5. Since IRQ8 to IRQ15 of the slave 8259 are disconnected from IRQ2 of the master 8259 they have higher priority than IRQ3 to IRQ7 of the master 8259. a. True b. False 6. In the x86, IRQ7 has the highest priority & IRQO is assigned the lowest priority. a. True b. False

Explanation / Answer

1.When accessing the system bus via the expansion slot, the plug-in card must interfere with the working of system buses on the motherboard

Answer:False

2. In edge-triggered mode, 8259 will latch another interrupt until the IRQ input goes back to high.

Answer:True

3.The advantage of edge-triggered mode is false interrupt caused by a spikes as a result of noise on the IRR line-especially in high-speed systems

Answer: True

4.In buffering, the data bus is accessed only for a specific address range, and access by any address beyond the range is unblocked

Answer:True

5. Since IRQ8 to IRQ15 of the slave 8259 are disconnected from IRQ2 of the master 8259 they have higher priority than IRQ3 to IRQ7 of the master 8259

Answer:True

6.In the x86, IRQ7 has the highest priority & IRQO is assigned the lowest priority

Answer: False

7.74LS244 boost the address and control signals This ensures the integrity of the signal transmitted to the olug in board

Answer:True