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Consider the following policies for preventing deadlock in a system with mutually exclusive resources.
Which of the below policies can be used for preventing deadlock?
- a)Processes should acquire all their resources at the beginning of execution. If any resource is not available, all resources acquired so far are released.
- b)The resources are numbered uniquely, and processes are allowed to request for resources only in increasing resource numbers.
- c)The resources are numbered uniquely, and processes are allowed to request for resources only in decreasing resource numbers.
- d)The resources are numbered uniquely. A process is allowed to request only for a resource with a resource number larger than its currently held resources.
Correct answer is option 'A,B,C,D'. Can you explain this answer?
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Most Upvoted Answer
Consider the following policies for preventing deadlock in a system wi...
Preventing deadlock in a system with mutually exclusive resources
There are several policies that can be used to prevent deadlock in a system with mutually exclusive resources. These policies ensure that deadlocks do not occur by imposing restrictions on how resources are allocated and released by processes. The following policies can be used for preventing deadlock:
a) Acquiring all resources at the beginning of execution:
Under this policy, processes are required to acquire all the resources they need at the beginning of their execution. If any resource is not available, the process releases all the resources it has acquired so far. This policy ensures that a process does not hold any resource while waiting for another resource, thereby preventing deadlock.
b) Requesting resources only in increasing resource numbers:
In this policy, each resource is assigned a unique number, and processes are allowed to request resources only in increasing order of their numbers. This ensures that a process does not hold a lower-numbered resource while waiting for a higher-numbered resource. By following this policy, the occurrence of circular wait, which is one of the necessary conditions for deadlock, is prevented.
c) Requesting resources only in decreasing resource numbers:
Similar to the previous policy, each resource is assigned a unique number, but processes are allowed to request resources only in decreasing order of their numbers. This policy also prevents the occurrence of circular wait and helps in preventing deadlock.
d) Requesting resources with larger resource numbers:
Under this policy, each resource is assigned a unique number, and a process is allowed to request only for a resource with a number larger than the currently held resources. This policy ensures that a process does not hold a resource while waiting for another resource with a smaller number. By following this policy, the occurrence of circular wait is prevented, thereby preventing deadlock.
Conclusion:
All the mentioned policies (a, b, c, and d) can be used for preventing deadlock in a system with mutually exclusive resources. Each policy imposes certain restrictions on how resources are allocated and released by processes, ensuring that the necessary conditions for deadlock do not occur. By following these policies, the system can effectively prevent deadlocks and maintain efficient resource allocation.
There are several policies that can be used to prevent deadlock in a system with mutually exclusive resources. These policies ensure that deadlocks do not occur by imposing restrictions on how resources are allocated and released by processes. The following policies can be used for preventing deadlock:
a) Acquiring all resources at the beginning of execution:
Under this policy, processes are required to acquire all the resources they need at the beginning of their execution. If any resource is not available, the process releases all the resources it has acquired so far. This policy ensures that a process does not hold any resource while waiting for another resource, thereby preventing deadlock.
b) Requesting resources only in increasing resource numbers:
In this policy, each resource is assigned a unique number, and processes are allowed to request resources only in increasing order of their numbers. This ensures that a process does not hold a lower-numbered resource while waiting for a higher-numbered resource. By following this policy, the occurrence of circular wait, which is one of the necessary conditions for deadlock, is prevented.
c) Requesting resources only in decreasing resource numbers:
Similar to the previous policy, each resource is assigned a unique number, but processes are allowed to request resources only in decreasing order of their numbers. This policy also prevents the occurrence of circular wait and helps in preventing deadlock.
d) Requesting resources with larger resource numbers:
Under this policy, each resource is assigned a unique number, and a process is allowed to request only for a resource with a number larger than the currently held resources. This policy ensures that a process does not hold a resource while waiting for another resource with a smaller number. By following this policy, the occurrence of circular wait is prevented, thereby preventing deadlock.
Conclusion:
All the mentioned policies (a, b, c, and d) can be used for preventing deadlock in a system with mutually exclusive resources. Each policy imposes certain restrictions on how resources are allocated and released by processes, ensuring that the necessary conditions for deadlock do not occur. By following these policies, the system can effectively prevent deadlocks and maintain efficient resource allocation.
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Consider the following policies for preventing deadlock in a system wi...
A deadlock will not occur if one of the following four conditions doesn’t occur:
- Mutual exclusion: it prevents simultaneous access to a shared resource.
- Hold and wait: Process is holding a resource that may be required by other processes.
- Circular wait: It means there are processes that are waiting for other processes to finish.
- No pre-emption: If a process that is holding some resources requests another resource and that resource cannot be allocated to it, then it must release all resources that are currently allocated to it.
Option (A): Processes should acquire all their resources at the beginning of execution. If any resource is not available, all resources acquired so far are released. If this is allowed, then hold and wait will never occur. So, the deadlock will not occur.
Option (B): The resources are numbered uniquely, and processes are allowed to request for resources only in increasing resource numbers. It violates circular wait.
Option (C): The resources are numbered uniquely, and processes are allowed to request for resources only in decreasing resource numbers. It also violates circular wait.
Option (D): The resources are numbered uniquely. A process is allowed to request only for a resource with a resource number larger than its currently held resources. It also violates circular wait.
Hence, the correct options are (A), (B), (C) and (D).
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Consider the following policies for preventing deadlock in a system with mutually exclusive resources.Which of the below policies can be used for preventing deadlock?a)Processes should acquire all their resources at the beginning of execution. If any resource is not available, all resources acquired so far are released.b)The resources are numbered uniquely, and processes are allowed to request for resources only in increasing resource numbers.c)The resources are numbered uniquely, and processes are allowed to request for resources only in decreasing resource numbers.d)The resources are numbered uniquely. A process is allowed to request only for a resource with a resource number larger than its currently held resources.Correct answer is option 'A,B,C,D'. Can you explain this answer?
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Consider the following policies for preventing deadlock in a system with mutually exclusive resources.Which of the below policies can be used for preventing deadlock?a)Processes should acquire all their resources at the beginning of execution. If any resource is not available, all resources acquired so far are released.b)The resources are numbered uniquely, and processes are allowed to request for resources only in increasing resource numbers.c)The resources are numbered uniquely, and processes are allowed to request for resources only in decreasing resource numbers.d)The resources are numbered uniquely. A process is allowed to request only for a resource with a resource number larger than its currently held resources.Correct answer is option 'A,B,C,D'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider the following policies for preventing deadlock in a system with mutually exclusive resources.Which of the below policies can be used for preventing deadlock?a)Processes should acquire all their resources at the beginning of execution. If any resource is not available, all resources acquired so far are released.b)The resources are numbered uniquely, and processes are allowed to request for resources only in increasing resource numbers.c)The resources are numbered uniquely, and processes are allowed to request for resources only in decreasing resource numbers.d)The resources are numbered uniquely. A process is allowed to request only for a resource with a resource number larger than its currently held resources.Correct answer is option 'A,B,C,D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following policies for preventing deadlock in a system with mutually exclusive resources.Which of the below policies can be used for preventing deadlock?a)Processes should acquire all their resources at the beginning of execution. If any resource is not available, all resources acquired so far are released.b)The resources are numbered uniquely, and processes are allowed to request for resources only in increasing resource numbers.c)The resources are numbered uniquely, and processes are allowed to request for resources only in decreasing resource numbers.d)The resources are numbered uniquely. A process is allowed to request only for a resource with a resource number larger than its currently held resources.Correct answer is option 'A,B,C,D'. Can you explain this answer?.
Consider the following policies for preventing deadlock in a system with mutually exclusive resources.Which of the below policies can be used for preventing deadlock?a)Processes should acquire all their resources at the beginning of execution. If any resource is not available, all resources acquired so far are released.b)The resources are numbered uniquely, and processes are allowed to request for resources only in increasing resource numbers.c)The resources are numbered uniquely, and processes are allowed to request for resources only in decreasing resource numbers.d)The resources are numbered uniquely. A process is allowed to request only for a resource with a resource number larger than its currently held resources.Correct answer is option 'A,B,C,D'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider the following policies for preventing deadlock in a system with mutually exclusive resources.Which of the below policies can be used for preventing deadlock?a)Processes should acquire all their resources at the beginning of execution. If any resource is not available, all resources acquired so far are released.b)The resources are numbered uniquely, and processes are allowed to request for resources only in increasing resource numbers.c)The resources are numbered uniquely, and processes are allowed to request for resources only in decreasing resource numbers.d)The resources are numbered uniquely. A process is allowed to request only for a resource with a resource number larger than its currently held resources.Correct answer is option 'A,B,C,D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following policies for preventing deadlock in a system with mutually exclusive resources.Which of the below policies can be used for preventing deadlock?a)Processes should acquire all their resources at the beginning of execution. If any resource is not available, all resources acquired so far are released.b)The resources are numbered uniquely, and processes are allowed to request for resources only in increasing resource numbers.c)The resources are numbered uniquely, and processes are allowed to request for resources only in decreasing resource numbers.d)The resources are numbered uniquely. A process is allowed to request only for a resource with a resource number larger than its currently held resources.Correct answer is option 'A,B,C,D'. Can you explain this answer?.
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