Question

What happens when an invalid memory address is accessed in Windows?

a.

The processor generates a page-fault interrupt and invokes the interrupt handler from entry 14 at the IDT

b.

The processor generates an exception and invokes the exception handler from entry 14 at the IDT

c.

The processor generates a system call and invokes the system call handler from entry 14 at the IDT

d.

The processor generates an interrupt and invokes the interrupt handler from entry 15 at the IDT

Posted under Reverse Engineering

Answer: (a).The processor generates a page-fault interrupt and invokes the interrupt handler from entry 14 at the IDT Explanation:When an invalid memory address is accessed in Windows, the processor generates a page-fault interrupt (interrupt #14) and invokes the interrupt handler from entry 14 at the IDT.

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