Aspire Faculty ID #18406 · Topic: UGC NET Computer Science June 2023 (Paper II) · Just now
UGC NET Computer Science June 2023 (Paper II)

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: I/O protection is ensured by a hardware trap

Reason R: I/O interrupt caused by the condition like I/O completion and device malfunction occurring within the I/O devices

In the light of the above statements, choose the correct answer from the options given below.

Solution

Assertion A is true because I/O protection is ensured using privileged instructions and hardware trap.

Reason R is also true because I/O interrupts may occur due to I/O completion or device malfunction.

But Reason R does not explain Assertion A.

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