Which one of the following statements about the dual-mode (i.e. user and kernel) of operating systems is TRUE? 000 In user mode, a process can switch to kernel mode only if it runs with administrative privileges All of the mentioned A process switches from kernel to user mode when I/O is completed by calling a system call In user mode, a process cannot call system calls In kernel mode, a process can execute privileged instructions

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Which one of the following statements about the dual-mode (i.e. user and kernel) of operating
systems is TRUE?
In user mode, a process can switch to kernel mode only if it runs with administrative privileges
All of the mentioned
A process switches from kernel to user mode when I/O is completed by calling a system call
In user mode, a process cannot call system calls
In kernel mode, a process can execute privileged instructions
Transcribed Image Text:Which one of the following statements about the dual-mode (i.e. user and kernel) of operating systems is TRUE? In user mode, a process can switch to kernel mode only if it runs with administrative privileges All of the mentioned A process switches from kernel to user mode when I/O is completed by calling a system call In user mode, a process cannot call system calls In kernel mode, a process can execute privileged instructions
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