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Consider the following arguments about Bankers algorithm.
i. Each process must have apriori claim of its maximum requirement
ii. There are multiple instances of each resource type
iii. It is a deadlock prevention algorithm
iv. It is a resource allocation algorithm
Which of the following are true?
- a)i, ii and iii
- b)i, ii and iv
- c)ii and iv
- d)i, ii, iii and iv
Correct answer is option 'B'. Can you explain this answer?
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Consider the following arguments about Bankers algorithm.i. Each proc...
Bankers algorithm is a deadlock avoidance algorithm. Requires that the system has some additional a priori information available.
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Simplest and most useful model requires that each process declares the maximum number of resources of each type that it may need. The deadlock-avoidance algorithm dynamically examines the resource-allocation state to ensure that there can never be a circular-wait condition.
Resource-allocation state is defined by the number of available and allocated resources, and the maximum demands of the processes. So except statement iii, all are true.
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Consider the following arguments about Bankers algorithm.i. Each proc...
Banker's Algorithm
The Banker's algorithm is a resource allocation and deadlock prevention algorithm used in operating systems. It is used to determine if a state is safe or unsafe by simulating the allocation of resources to processes and checking for potential deadlocks. Let's analyze the given statements about the Banker's algorithm to determine which ones are true.
i. Each process must have apriori claim of its maximum requirement
This statement is true. In the Banker's algorithm, each process is required to provide its maximum resource requirement before allocation can occur. By having this apriori claim, the algorithm can ensure that resources are allocated in a way that prevents deadlock and satisfies the maximum requirements of each process.
ii. There are multiple instances of each resource type
This statement is true. The Banker's algorithm assumes that there are multiple instances of each resource type available. This is necessary to ensure that resources can be allocated to multiple processes simultaneously. If there were only a single instance of each resource type, deadlock could occur if multiple processes requested the same resource at the same time.
iii. It is a deadlock prevention algorithm
This statement is true. The Banker's algorithm is primarily a deadlock prevention algorithm. It achieves this by using a concept called the "safety algorithm" to determine if a state is safe or unsafe. If a state is safe, it means that there is no possibility of a deadlock occurring. By checking for safety before allocating resources, the algorithm can prevent deadlocks from happening.
iv. It is a resource allocation algorithm
This statement is true. The Banker's algorithm is indeed a resource allocation algorithm. It determines the order in which processes should be allocated resources to ensure that deadlock does not occur. The algorithm takes into account the available resources, the maximum resource requirements of each process, and the current allocation of resources to make informed decisions about resource allocation.
Conclusion
Based on the analysis of the given statements, the correct answer is option B, which states that statements i, ii, and iv are true. The Banker's algorithm requires each process to have an apriori claim of its maximum resource requirement, assumes multiple instances of each resource type, and is both a deadlock prevention and resource allocation algorithm.
The Banker's algorithm is a resource allocation and deadlock prevention algorithm used in operating systems. It is used to determine if a state is safe or unsafe by simulating the allocation of resources to processes and checking for potential deadlocks. Let's analyze the given statements about the Banker's algorithm to determine which ones are true.
i. Each process must have apriori claim of its maximum requirement
This statement is true. In the Banker's algorithm, each process is required to provide its maximum resource requirement before allocation can occur. By having this apriori claim, the algorithm can ensure that resources are allocated in a way that prevents deadlock and satisfies the maximum requirements of each process.
ii. There are multiple instances of each resource type
This statement is true. The Banker's algorithm assumes that there are multiple instances of each resource type available. This is necessary to ensure that resources can be allocated to multiple processes simultaneously. If there were only a single instance of each resource type, deadlock could occur if multiple processes requested the same resource at the same time.
iii. It is a deadlock prevention algorithm
This statement is true. The Banker's algorithm is primarily a deadlock prevention algorithm. It achieves this by using a concept called the "safety algorithm" to determine if a state is safe or unsafe. If a state is safe, it means that there is no possibility of a deadlock occurring. By checking for safety before allocating resources, the algorithm can prevent deadlocks from happening.
iv. It is a resource allocation algorithm
This statement is true. The Banker's algorithm is indeed a resource allocation algorithm. It determines the order in which processes should be allocated resources to ensure that deadlock does not occur. The algorithm takes into account the available resources, the maximum resource requirements of each process, and the current allocation of resources to make informed decisions about resource allocation.
Conclusion
Based on the analysis of the given statements, the correct answer is option B, which states that statements i, ii, and iv are true. The Banker's algorithm requires each process to have an apriori claim of its maximum resource requirement, assumes multiple instances of each resource type, and is both a deadlock prevention and resource allocation algorithm.
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Consider the following arguments about Bankers algorithm.i. Each process must have apriori claim of its maximum requirementii. There are multiple instances of each resource typeiii. It is a deadlock prevention algorithmiv. It is a resource allocation algorithmWhich of the following are true?a)i, ii and iiib)i, ii and ivc)ii and ivd)i, ii, iii and ivCorrect answer is option 'B'. Can you explain this answer?
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