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A system call is a routine built into the kernel and performs a basic function.

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A system call is a routine built into the kernel and performs a basic function.

(a) True

(b) False

This question was posed to me in an interview for internship.

This question is from System Calls Basics in chapter System Programming I – Files of Unix

1 Answer

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Best answer
Correct choice is (a) True

For explanation: All UNIX systems offer around 200 special functions known as system calls. A system call is a routine built into the kernel and performs a very basic function that requires communication with the CPU, memory and devices.

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