Q8

MCQ1 mark, −0.33

Consider the following two statements about interrupt handling mechanisms in a CPU. $\text{S1}$ : In non-vectored interrupt mechanism, it usually takes more time to start the Interrupt Service Routine (ISR) when compared to that in a vectored interrupt mechanism. $\text{S2}$ : In daisy-chain interrupt mechanism, the CPU polls all the input devices individually to determine the source of the interrupt. Which one of the following options is correct with respect to $\text{S1}$ and $\text{S2}?$

(A)

Both $\text{S1}$ and $\text{S2}$ are true

(B)

Both $\text{S1}$ and $\text{S2}$ are false

(C)

$\text{S1}$ is true and $\text{S2}$ is false

(D)

$\text{S1}$ is false and $\text{S2}$ is true

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