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Question

Why is it not possible to directly call a kernel function from user mode?

a.

It would create a serious vulnerability.

b.

User-mode code does not have access to kernel-mode functions.

c.

Kernel-mode functions cannot be accessed from user mode.

d.

It would slow down the system.

Posted under Reverse Engineering

Answer: (a).It would create a serious vulnerability. Explanation:It is not possible to directly call a kernel function from user mode because it would create a serious vulnerability.

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