COMP 4730 Lecture Notes - Lecture 5: Computer Ethics

19. Assume 3 processes are in ready states with required service times in seconds) as indicated in the following table. Using the shortest Job Next CPU scheduling algorithm which expression below correctly represents average turn-around time in seconds? Process P1 P2 Service Time 30 10 a) (30 + 40 + 60)/3 b) (30 + 10 + 20)/3 c) (10 + 30 + 60)/3 X d) (20 + 50 + 10)/3 e) None of the above

19. How many rectangles are drawn by the following Processing sketch? int i = 0; if (i < 100) { rect(i, i, 10, 10); i = i + 10; A. 0 B. 1 c. 10 D. 100 E. more than 100

16. What does the following program print? int x = 10; void setup() { int 2 times Two (x); println(x); println(z); A. 10, 10, 20 B. 10, 20, 10 c. 10, 20, 20 D. 20, 20, 10 E. 20, 10, 20 int timesTwo (int y) { x = y* 2; println(y); return x;