Consider a system consisting of four processes and a single resource. The total resource before any allocation occurs is 20. The current state of the claim vector is C = (3, 2, 8, 6) and the allocation vector is A = (1, 1, 3, 2). If "Process Initiation Denial" is used as the Deadlock Avoidance policy, should a new process with 2 maximum claim be initiated? O Yes O No
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- Consider a system consisting of 5 processes, P = {P1, P2, P3, P4, P5} and 3 resources types, R = {R1, R2, R3}. The number of instances for each resource type are 2, 2 and 1 respectively. The state of the system at time, it is described as follow: P1 requests an instance of R2 P2 requests an instance of R1 P3 requests an instance of R2 and holds an instance of R1 and an instance of R3 P4 requests an instance of R3 P5 holds all instances of R2 Assuming that all resources are non-sharable, construct a Resource Allocation Graph to depict the process state.Suppose a system has 5 processes, P = {P1, P2, P3, P4, P5}, and 4 resources, R = {R1, R2, R3, R4}, where there are 2 instances of R1, 1 instance of R2, 3 instances of R3, and 3 instances of R4. The current state of the system is defined by the following requests and assignments: P1 is requesting an instance of R3 and has been assigned an instance of R2; P2 is requesting an instance of R1 and has been assigned an instance of R3; P3 is requesting an instance of R4 and has been assigned an instance of R1 and an instance of R3; P4 is requesting an instance of R3; P5 is requesting an instance of R2 and has been assigned an instance of R4. Is there deadlock in this system? (Explicitly state yes, there’s deadlock or no, there isn’t.) If applicable, draw a wait-for graph or resource-allocation graph, and use the appropriate graph to justify your answer. If you conclude there is no deadlock, your justification should contain a sequence of execution for the processes which shows that…Consider a system with five processes and three resource type. Resource type X has 7 instances, resource type Y has 10 instances and resource type Z has 5 instances. Suppose that at time 0, the following snapshot of the system has been taken. Suppose B request 2 additional instances of resource type X and 1 instance for resource type Y, can the request be granted? Is the system safe? If yes, what is the safe sequence?
- A system has three processes (P1,P2, P3) and three resources (R1,R2, R3). There is one instance of R1 and R2. There are three instances of R3. P1 holds an R1 and is requesting an R3. P2 holds an R3 and is requesting an R1. P3 holds two instances of R3 and an R2. Does a deadlock exist? Justify your answer.Assume that resource R1 is assigned a unique ID of 2 and resource R2 is assigned a unique ID of 5, There are 3 instances each of R1 and R2. Suppose that deadlock condition is avoided by ensuring no circular-wait. Given the following scenario, with 4 processes (P1-P4) along with the resource allocations, (i) Does the given scenario satisfy the NO circular-wait condition? Justify. (ii) Is there a deadlock? Justify Process ID P1 P2 P3 P4 Current allocation R1 1 0 1 0 R2 1 1 0 0 New request R1 0 0 1 2 R2 1 1 0 0Q6 Consider a system with four types of resources RI (3 units), R2 (2 units), R3 (3 units), and R4 (2 units). A non-preemptive resource allocation policy is used. At any given instance, a request is not entertained if it cannot be completely satisfied. Three processes P1, P2 and P3 request the resources as in Table Q6 if executed independently. Process P1: units of R2 t-0: requests 2 t-1: requests 1 unit of R3 t-3 requests 2 units of R t-5 releases 1 unit of R2 and 1 unit of R1 Table Q6 t-7: releases 1 unit of R3; t-8: requests 2 units of R4 t-10: Finishes Process P2: :requests 2 1 requenta 1 1 requests 1 units of Ri unit of R4 unit of Ri t-6: releases 1 unit of R3 t-8: Finishes Process PJ: t-0: requests 1 unit of R4 requests 2 units of Al releases 2 units of R1 requests 1 unit of R2 t-8: requests 1 unit of R3 t-9: Finishes t-2 t-5 t-7 If all three processes run concurrently starting at time t - 0, Draw the resource allocation graph at the time: (i) t - 10 Determine whether deadlock…
- 1. Consider a system with: five processes, PO → P4, three resource types, A, B, C. Type A has 10 instances, B has 5 instances, C has 7 instances. At time TO the following snapshot of the system is taken. Is the system in a safe state? Max Need Allocated Available A B A B C A C PO 7 5 3 2 P1 2 2 P2 9. 3 2 P3 2 2 1 1 P4 4 Is the system in a safe state? Write the steps, that leads to your conclusion. O3O2N23Hey, I have already received a good answer to this question but I am looking for greater detail to be provided. There are three processes P1, P2 and P3 are running in a system with 3 instances of a resource R1, 2 instances of a resource R2, and 2 instances of a resource R3. At a given time the allocation matrix is: A = [{1, 1, 1} { 0, 1, 0} { 1, 0, 0 }] Assume that the maximum matrix is M = [ {2,2,1} {1,1,1} {3,1,0}] While in this state, a new process P4 is created which requires at most 2 instances of R1 and one instance of R2. This process initially requests one instance of R1 to be allocated to it. Using the Banker’s algorithm, determine whether this request can be granted or must be refused.Suppose processes P1-P4 with the given priorities and resource allocations. 1 is the highest priority and 4 is the lowest priority. Let us also assume that the "no preemption" condition is now relaxed by allowing preemption of resources by processes of higher priority. For example, P3 may preempt P2 or P4 if it needs a resource which they are holding. If P3 preempts one of these processes, say P4, then P4 release all the resources it is holding. Show one sequence of events in which resources are allocated to the 4 processes and the resulting preemptions, if any, until all new requests are serviced. Current allocations are shown below. Each resource has 4 instances. Try to minimize the preemptions as they are expensive. Process ID Process Priority Current allocation New request R1 R2 R1 R2 P1 1 2 1 2 1 P2 3 0 1 1 0 P3 2 1 1 0 1 P4 4 1 1 2 1
- Suppose there are two Processes B1 and B2. There is one instance of Resource R1 and two instances of R2. • 81 holds Resource R1 and requesting for Resource R2. • B2 holds Resource R2 and requesting for Resource R1. Consider the scenario in terms of Deadlocks. You may consider drawing a Resource Allocation Graph for the above scenario. (No Upload.Only write answers for a) and b) in the box given below) a) What kind of situation does the graph shows (Deadlock or No Deadlock)? b) Justify(reason) your answer to question (a). A- B IWe have a set of activities that require stand-alone access to a common resource, given the form A = {a1, a2, ..., an}, so if the resource is reserved for one activity, that activity cannot be assigned to another activity until it has finished. • The activity needs the ai resource in the [si, fi] time interval. Here si indicates the start time of the activity and fi indicates the end time of the activity. You can think of the time values given here as positive integers. • The goal is to find the largest possible number of non-contagious activities, ie the time periods where they need common resources do not overlap. Assuming that the activities are presented in ascending order with respect to their start times, design an algorithm based on dynamic programming for the activity selection problem. Your algorithm should find and return the maximum number of non-overlapping activities that can be selected from a set of activities given in the above conditions. Just as you write your…Given that there are FIVE (5) processes (A, B, C, D and E) and FOUR (4) resources (R1, R2,R3 and R4) involved in a project. Assume that all the resources are non-sharable and the number of instances for each resource is 2, 3, 2, 3 respectively. *Process A holds one instance of R1, R2 and R4. It requests one instance of R3.* Process B holds one instance of R1 and R3. It requests one instance of R4.* Process C holds one instance of R2 and R4.* Process D holds one instance of R2 and R4. It requests one instance of R1.* Process E holds one instance of R3. It requests one instance of R2. (i) Draw a directed resources allocation graph for the above scenario and Are these five processes in a deadlock state? Justify your answer.