To Operating System for Sys. Adamin. Question 1: Briefly explaining WHAT CONDITIONS cause a process to move between each of the following 3 states indicated by each arrow (from 1 to 6). Label it N/A if it doesn’t happen. [5 points] 1 Running 2 Ready 3 5 4 6 Waiting Question 2. In this question, events are given during the execution of a grading program. You are supposed to understand the process state transition and fill out those blanks and choose the right options. Hint: state transition occurs when some particular events happen. Please use one of ready, running, blocked states as the possible state for the process. When you need to determine the running mode, please use either user or kernel. int exam_grade (int m1, int m2, int m3) { int exam_sum; exam_sum = 0.3*m1 + 0.5*m2 + 0.2*m3; return exam_sum; } -- Event: user runs the program, the process is in main () { Q1_______ -- Event: when the following condition occurs _________ → process is in running state and the program is in user kernel mode. ( right mode from the above options) Q3, state. Q2, the please choose the for (i=1; i total2) total = total1; else total = total2; -- Event: I/O device interrupts to signal the completion of an I/O of a different process → Switch to user kernel mode to run interrupt handler (context switch) ( the above options). state. Q13, Q12, please check the correct one from the current process is in ___________ → Switch back to run this process in _________ mode (context switch) if (extra = 0) final = total; else final = (float) Bonus(total, extra); printf (" %.1f ", final); scanf ("%c", &ch); printf ("\n"); } fork (); -- Event: system call → Kernel trap, switch to kernel mode to handle fork (context switch) Q14, OS creates the child process, put it in ___________ queue } Please fill the answer into the following table, for the process states, please consider ‘ready’, ‘running’, ‘blocked’, for the mode, please consider ‘user mode’ and ‘kernel mode’, for the events, please consider “interrupt”, ‘cpu scheduled’, ‘i/o request’, ‘i/o completion’, ‘system call’. Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Question 3. Case study, in this task, you need to study a process state transition for any real system (linux, wondows, mac, android, ios, etc.). What you need to do is draw the process state transition diagram and describe the conditions for every transition. To Operating System for Sys. Adamin. Question 1: Briefly explaining WHAT CONDITIONS cause a process to move between each of the following 3 states indicated by each arrow (from 1 to 6). Label it N/A if it doesn’t happen. [5 points] 1 Running 2 Ready 3 5 4 6 Waiting Question 2. In this question, events are given during the execution of a grading program. You are supposed to understand the process state transition and fill out those blanks and choose the right options. Hint: state transition occurs when some particular events happen. Please use one of ready, running, blocked states as the possible state for the process. When you need to determine the running mode, please use either user or kernel. int exam_grade (int m1, int m2, int m3) { int exam_sum; exam_sum = 0.3*m1 + 0.5*m2 + 0.2*m3; return exam_sum; } -- Event: user runs the program, the process is in main () { Q1_______ -- Event: when the following condition occurs _________ → process is in running state and the program is in user kernel mode. ( right mode from the above options) Q3, state. Q2, the please choose the for (i=1; i total2) total = total1; else total = total2; -- Event: I/O device interrupts to signal the completion of an I/O of a different process → Switch to user kernel mode to run interrupt handler (context switch) ( the above options). state. Q13, Q12, please check the correct one from the current process is in ___________ → Switch back to run this process in _________ mode (context switch) if (extra = 0) final = total; else final = (float) Bonus(total, extra); printf (" %.1f ", final); scanf ("%c", &ch); printf ("\n"); } fork (); -- Event: system call → Kernel trap, switch to kernel mode to handle fork (context switch) Q14, OS creates the child process, put it in ___________ queue } Please fill the answer into the following table, for the process states, please consider ‘ready’, ‘running’, ‘blocked’, for the mode, please consider ‘user mode’ and ‘kernel mode’, for the events, please consider “interrupt”, ‘cpu scheduled’, ‘i/o request’, ‘i/o completion’, ‘system call’. Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Question 3. Case study, in this task, you need to study a process state transition for any real system (linux, wondows, mac, android, ios, etc.). What you need to do is draw the process state transition diagram and describe the conditions for every transition.
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