October 5, 2023
Question 24 Consider the following schedule S of transactions T1 and T2: T1 T2 Read(A) A = A - 10 Read (A) Temp = 0.2*A Write(A) […]
October 5, 2023
Question 13 Suppose P,Q and R are co-operating processes satisfying Mutual Exclusion condition. Then if the process Q is executing in its critical section then A […]
October 5, 2023
Question 7 Which one or more of the following options guarantee that a computer system will transition from user mode to kernel mode? A Function Call […]
October 5, 2023
Question 52 Consider a system with five processes P0 through P4 and three resource types A, B and C. Resource type A has seven instances, resource […]
October 5, 2023
Question 6 The following C program is executed on a Unix/Linux system: #include <unistd.h> int main () { int i ; for (i=0; i<10; i++) if […]
October 6, 2023
Question 11 Two shared resources R1 and R2 are used by processes P1 and P2. Each process has a certain priority for accessing each resource. Let […]
October 6, 2023
Question 1 Consider the following set of processes, assumed to have arrived at time 0. Consider the CPU scheduling algorithms Shortest Job First (SJF) and Round […]
October 6, 2023
Question 754 Consider a file currently consisting of 50 blocks. Assume that the file control block and the index block is already in memory. If a […]
October 6, 2023
Question 9 Consider the following snapshot of a system running n concurrent processes. Process i is holding Xi instances of a resource R, 1 ≤ i ≤ n. Assume […]
October 7, 2023
Question 2 Suppose a system has 12 instances of some resources with n processes competing for that resource. Each process may require 4 instances of the […]
October 7, 2023
Question 9 Consider a demand paging system with four page frames (initially empty) and LRU page replacement policy. For the following page reference string 7, 2, […]
October 7, 2023
Question 49 An operating system contains 3 user processes each requiring 2 units of resource R. The minimum number of units of r such that no […]