A system uses proportional allocation (according to process size) when allocating frames to processes. There are 3 processes with sizes: P1: 20 frames P2: 15 frames P3: 5 frames. The system posses 32 frames, from which 16 frames are reserved for the system itself and the rest are to be allocated to processes. How many frames process P2 will be allocated Select one: 12 O 6 O 15 O 10

Q: Two processes P1 and P2 as stated below are up for execution where they share a variable A that is…

A: We are given a beautiful code where two processes are executing and sharing a common variable A, and…

Q: A process references five pages A, B, C, D and E in the following order, A, C, B, E, A, B, E, A, B,…

A: The Answer is

Q: A process references five pages A, B, C, D and E in the following order, A, C, B, E, A, B, E, A, B,…

A: The question is to find the numbers of page transfers.

Q: A system has three processes (P1, P2, P3) and three reusable resources (R1, R2, R3). There is one…

A: Given: A system has three processes (P1, P2, P3) and three reusable resources (R1, R2, R3). There is…

Q: Given that pages of a process are accessed in the order of 3(w), 6(w), 1(w), 3(r), 4(r), 6(r), 2(w),…

A: Due to Bartleby guidelines, we can only answer first two parts of the question.If you need the…

Q: A system has 4 processes and 5 allocatable resource. The current allocation and maximum needs are as…

A: Introduction :Given , 4 process are given ,Number of resources are = 5.we have to calculate the…

Q: What is the waiting time of process PO for the following snapshot of processes , using FCFS CPU…

A: FCFS stands for First Come First Serve which is a scheduling algorithm where processes gets executed…

Q: Let I represent an execution of init(s), W of wait(s), and S of signal(s). Then, for example, IWWS…

A: Let I represent an execution of init(s), W of wait(s), and S of signal(s). Then, for example, IWWS…

Q: Consider the processes P1,P2,P3 with burst time 3, 3, 24 respectively and arrival time = 0 ms what…

A: The correct answer along with the explanation is given below:

Q: Consider the processes P1, P2, P3 with burst time 3, 3, 24 respectively and arrival time= 0 ms what…

A: Answer is  3 ms

Q: The following is the expected sequence of events when a child process reads the message buffer of…

A: Given: The following is the expected sequence of events when a child process reads the message…

Q: Three periodic processes of an operating system has P(burst time, period) as follows: P1(4,20),…

A: Three periodic processes of an operating system has P(burst time, period) as follows: P1(4,20),…

Q: a single process, with execution time of BT time units, is detected by the system that uses Round…

A: Given that, A process have the following: Execution time= BT Time Quantum= QT Context switch delay=…

Q: Consider the processes P1, P2, P3 with burst time 24, 3, 3 respectively and arrival time= 0 ms what…

A: Here in this question we have given three processes with their burst time and arrival time..we have…

Q: Initially s = 1 and t 2. The following operations occur: P executes DOWN(s) Q executes DOWN(t) Q…

A: Down() operation will decrement value of semaphore by 1 and if value of semaphore<0 then the…

Q: A process contains 8 virtual pages on the disk, and is assigned a fixed allocation of 4 page frames…

A:

Q: Consider the below implementations of a semaphore's wait and signal operations: wait ) { disable…

A: Semaphores : Semaphore is basically a variable that is non-negative and shared between strings. A…

Q: Using Priority Scheduling algorithm, find the average waiting time for the following set of…

A: To Do: To find the average waiting time.

Q: Three processes of an operating system has P(arrival time, burst time) as follows: P1(0,6),P2(2,5),…

A: In given question, we have 3 Processes P1, P2 and P3 with arrival time and burst time. And we have…

Q: Consider the following processes that arrive at time 0 ms with their burst time in milli…

A: Here in this question we have given two parts we have to apply FCFS and SJF algorithm to them and…

Q: Consider the following processes and answer the questions, the burst time for processes p1 to p4 is…

A:

Q: Suppose there are 8 processes in a system which are waiting to be assigned to the ready queue. The…

A: Multilevel Feedback queue: In this queue, the process can move between the queues. The process with…

Q: According to SJF scheduling algorithm what is the order in which the processes are scheduled. Assume…

A: In Shortest Job First (SJF) the jobs are scheduled on the basis of their burst time. Process having…

Q: The table below shows 5 jobs in a time-sharing system. What is the average response time if the…

A: In Round Robin scheduling, each process get equal chance to get CPU, so there is no Starvation for…

Q: Assume there are two dependent processes, which synchronization algorithm will you choose for best…

A: PROCESS SYNCHRONIZATION:- 1. Process synchronization is a process coordination task so that no two…

Q: Consider a system having 64 frames and there are four processes with the following virtual memory…

A: Equal Allocation: Assume that there are n frames, and p processes, then n/p frames are allocated to…

Q: A process selects a replacement frame from the set of all frames. a. Local replacement b. Global…

A: When a larger program is to be run on a system with small memory then page replacement algorithm is…

Q: Consider the below implementations of a semaphore's wait and signal operations: wait () { Disable…

A: Solution: a) sem.value is the one which is protected by wait and signal, because in the critical…

Q: Consider the following set of processes, with the length of the CPU burst time given in…

A:

Q: A system has 4-kB pages, a 48-bit virtual address space, and a 33-bit physical address space.…

A: Lets see the solution in the next steps

Q: A system has four processes and five allocatable resources. The current allocation and maximum needs…

A: The smallest value of x for given system in safe state

Q: Suppose there are four processes (P1 - P4) with respective arrival times of 0, 10, 30, and 40, and…

A: - The scenario is of a First-come-first-served basis . - In this case the waiting time is the…

Q: A Main Memory has 20 available frames free (frame o to frame 19). The following requests were…

A: We are given 20 frames and we have requests from various processes. Swapping means a process is…

Q: Given a 32-bit virtual address space featuring a 10-10-12 split and a 4-byte PTE size, suppose a…

A:

Q: Given a 32-bit virtual address space featuring a 10-10-12 split and a 4-byte PTE size, suppose a…

A: The Answer is

Q: Consider a system having 64 frames and there are four processes with the following virtual memory…

A: Introduction:Given,Total Frames = 64virtual memory sizes , v(1) = 16v(2) = 128v(3) = 64v(4) = 48we…

Q: A variation of the round-robin scheduler is the regressive round-robin scheduler. This scheduler…

A: Solution ::  Let's see first that what is CPU Bound process?  Answer ::  CPU Bound processes are…

Q: We use the concept "paging" to map logical address to physical address. If the process size is 9216…

A: As it is mentioned that paging is used to map the virtual address space to physical address space.…

Q: For an old computing system with 2K bytes physical memory, and the virtual address has 13 bits.…

A: In question c) virtual address given of 12 bit but the actual virtual address is of 13 bits so have…

Q: For an old computing system with 2K bytes physical memory, and the virtual address has 13 bits.…

A:

Q: For an old computing system with 2K bytes physical memory, and the virtual address has 13 bits.…

A: Given: For an old computing system with 2K bytes physical memory, and the virtual address has 13…

Q: FCFS process scheduling is so fair, what is the problem with it?

A: FCFS :- First Come First Serve (FCFS) is an operating system scheduling algorithm that automatically…

Q: consider the following set of processes , with the length of the CPU burst given in milliseconds:…

A: Scheduling is the process in the Operating System by which the processes are selected that will be…

Q: Consider a system with 36-bit virtual addresses, 32-bit physical addresses, and 4KB pages. The…

A: Given,The virtual Address space = 236 bytesPage size = 212 bytesPages = 236 / 212 = 224  Pages

Q: A real-time system has 2 processes, P and Q with 4 and 3 instances respectively. The table below…

A: It is an important part of Operating System Allow more than one process to load in executable memory…

Q: If a system has Total Memory = 120 MB, Process = 60 MB, Frame Size = 4 MB What will be the page…

A:

Q: Consider a system that has 4K pages of 512 bytes in size in thể logical address space. The physical…

A: The Answer is  Given data  Number of pages  = 4k page size  ps = 512 B = 2^9 B

Q: Please write the final answer in the following answer table. question 1 question 2 question 3…

A: The answer as given below;

Q: Consider the following set of processes: Process Arrival Burst P1 00 7 P2 2 4 P3 4 2 P4 6 2 Draw two…

A: FCFS:- It stands for first come first serve, means execute the process which come first. Preemptive…

Q: A computer has four page frames. The time of loading, time of last access and the R and M bits for…

A: The Answer is in Below Steps