9) Compute T30T20T1(x, y) for T1 (x,y)=(-2y,3x,x-2y) T2(x,y,z)=(y,z,x) T3(x,y,z)=(x +z,y-z)
2. Given the following three transactions T1 = r1(x); w1(y); T2 = r2(z); r2(y); w2(y); w2(x); T3 = r3(z); w3(x); r3(y); Consider the schedule S = r1(x); r3(z); r2(z); w3(x); r2(y); r3(y); w2(y); w1(y); w2(x); a. Draw the precedence graph of schedule S, and label each edge with data item(s). b. Based on the precedence graph, determine whether S is conflict serializable and justify your answer. If it is serializable, specify all possible equivalent serial schedule(s).
CSC1465L: Operating Systems Lab Consider the threads hierarchy below: T2 T1 T3 T1 will ask the user to enter an array of size N and will fill the array with student grades. T1 will then send the array to threads T2 and T3. T2 will compute the maximum grade of passed students. T3 will compute the maximum grade of failed students. T1 will print the maximum and minimum grades returned by threads T2 and 13. Note: A student passes an...
CSC1465L: Operating Systems Lab Consider the threads hierarchy below: T2 T1 T3 T1 will ask the user to enter an array of size N and will fill the array with student grades. T1 will then send the array to threads T2 and T3. T2 will compute the maximum grade of passed students. T3 will compute the maximum grade of failed students. T1 will print the maximum and minimum grades returned by threads T2 and 13. Note: A student passes an...
Solve 3x + 2y – z = 1x – 2y + z = 02x + y – 3z = -1
Al. Let T1(x, y, z) = (1-y+z, 2:0 – y + 2z, 2y + 2). (a). Is T1 one-to-one? (b). Is T onto?
Consider the following transaction schedule: r1(X), r2(X), r3(X), r1(Y), w2(Z), r3(Y), w3(Z), w1(Y) This schedule is conflict-equivalent to some or all serial schedules. Determine which serial schedules it is conflict-equivalent to, and then identify a true statement from the list below. Select one: a. The schedule is conflict-equivalent to (T3, T1, T2) b. The schedule is not serial c. The schedule is conflict-equivalent to (T3, T2, T1) d. The schedule is conflict-equivalent to (T2, T3, T1) e. The schedule is...
There are two sites s1 and s2 and three transactions T1, T2, T3. The time table is as follows S1 S2 t1: (T1, W, a) (T3,W, b) t2: (T2, R, b) (T1, R, b) t3: (T1, R, a) t4: (T2, R, c) t5: (T3, R, c) Is there any deadlock in this distributed processing? Why?
Question 5. (20pts) (Briefly justify your answer) 1) Consider three transactions: T1, T2 and T3. Draw the precedence graph for the following schedule consisting of these three transactions and determine whether it is conflict serializable a) (5points) S: R1(X); R3(Z); W2(X); RI(Z); R3(Y); W2(Y), R3(Z), W1(Z), b) (5points) S: RI(X); R3(Z); W20x); RI(Y); R2(Y); W3(Y); R3(Z); WI(Z);
Solve using Cramer's Rule X – 2y +z=7 2x +y – z=0 3x + 2y – 2z = -2 O (1,-2,0) O (2,-1,3) O (1,-1,1) No Solution
Suppose L1, L2, and L3 are languages and T1, T2, and T3 are Turing machines such that L(T1) = L1, L(T2) = L2, L(T3) = L3, knowing that T3 is recursive (always halts, either halts and accepts or halts and rejects) and both T1 and T2 are recursive enumerable so they may get stuck in an infinite loop for words they don't accept.. For each of the following languages, describe the Turing machine that would accept it, and state whether...