Question: What happens when invoking a function call? The function switches the execution from user mode to kernel mode. The function to be invoked is specified

What happens when invoking a function call?
The function switches the execution from user mode to kernel mode.
The function to be invoked is specified by its address.
The function switches the execution from kernel mode to user mode.
The function to be invoked is specified by an index vector into a branch vector.
What happens when invoking a function call? The function switches the

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