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When we execute a C program, CPU runs in ____ mode.

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in Unix by (67.2k points)
When we execute a C program, CPU runs in ____ mode.

(a) user

(b) kernel

(c) supervisory

(d) system

I had been asked this question by my school teacher while I was bunking the class.

I would like to ask this question from System Calls Basics topic in portion System Programming I – Files of Unix

1 Answer

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Correct answer is (a) user

For explanation I would say: When we execute a C program, the CPU runs in user mode. It remains it this particular mode until a system call is invoked.

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