Match each statement to the most appropriate choices More th

Match each statement to the most appropriate choices. More than one choice may be appropriate.

Choices:
A – System Call
B – Library Function
C – User Program


Statements:

Enters the OS kernel via a trap instruction ______
Code is stored in user space ______
Code is stored in kernel space ______
Switches the processor to kernel (supervisor) mode ______
Encapsulates (wraps) other functions ______
Always starts at a fixed physical memory address ______
Returns control to user space once finished ______
Pushes library function arguments onto program stack ______
Calling convention is highly machine dependent ______
Implements the POSIX standard ______

Solution

A) System call - Switches the processor to the kernel (supervisor) mode

B)Library function - Returns control to user space once finished

C)User program - code is stored in kernel space