A system has 4 processes sharing 5 resources. If each process needs a maximum of 2 resources then, deadlock:
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A: Answer
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- Consider a computer system with 3 processes and one resource with 4 instances. Each process needs at most 2 resource instances. Is a deadlock possible in this system? Justify your answer.Which among the following could be the possible examples of concurrent process? a. Check marks and check grade b. Order and Deliver c. Accept and Reject d. Sit and SwimThree processes that share five resources of the same kind make constitute a system. For each process, a maximum of two resources are needed. Establish that the system is free of deadlocks.
- There are 3 resources R1, R2 and R3 with one instance each and three processes P1, P2 and P3 in an operating system. A snapshot of the system resource allocation graph shows the following: R1 is allocated to P2; R2 is allocated to P1; R3 is allocated to P3; P1 requests R1; P2 requests R3; P3 requests R2. Which of the following is true about this system? answer ) a)Undetermined b)There is deadlock in the system c)Deadlock will never happen d)There is no deadlock in the system5. A state is safe if the system can allocate resources to each process (up to its maximum) in some order and still avoid deadlock. Then a. deadlocked state is unsafe b. unsafe state may lead to a deadlock situation c. deadlocked state is a subset of unsafe state d. all of theseA system has three processes (P1, P2, P3) and three reusable resources (R1, R2, R3). There is one instance of R1, two instances of R2 and three instances of R3. P1 holds an R1 and an R3 and is requesting an R2. P2 holds an R3 and is requesting an R1 and an R2. P3 holds two R2 and an R3 and is requesting an R1. How many cycles are there? Does a deadlokc exist? Why?
- 16. When two or more processes attempt to access the same resource a _________ occurs. a. Critical section b. Fight c. Communication problem d. Race condition81. Given a priori information about the ________ number of resources of each type that maybe requested for each process, it is possible to construct an algorithm that ensures that the system will never enter a deadlock state. a. minimum b. average c. maximum d. approximate101. A deadlock can be broken by : a. abort one or more processes to break the circular wait b. abort all the process in the system c. preempt all resources from all processes d. none of the mentioned
- Suppose there are three processes, P1, P2, and P3, and three files, FileA, FileB, and FileC. P1 has FileA and wants FileC. P2 has FileB and wants FileA. P3 has FileC and wants FileB. a) Draw a resource allocation graph for this situation. b) Does the graph represent a deadlock? Why or why not? Explain.assume a system has 6 identical resources and N processes competing for them. each process can request at most 2 resources. what is the maximum value of N for the system to be deadlock free?59. A system is in the safe state if a. the system can allocate resources to each process in some order and still avoid a deadlock b. there exist a safe sequence c. all of the mentioned d. none of the mentioned