Beginner
Operating Systems
Q5 / 100
What is a system call?
Correct! Well done.
Incorrect.
The correct answer is B) A request by a user program to the OS kernel to perform a privileged operation
B
Correct Answer
A request by a user program to the OS kernel to perform a privileged operation
Explanation
System calls (read, write, fork, exec, open) are the interface between user programs and the OS kernel, requiring a mode switch from user to kernel mode.
Progress
5/100