Question: Which of the following stands true for Resource-allocation graph for deadlock avoidance.
Answer:
MCQ: Which of the following stands true for Resource-allocation graph for deadlock avoidance.
Correct Answer:
A. An algorithm for detecting a cycle in this graph requires an order of n^2 operations, where n is the number of processes in the system
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Related Questions
- 1. The resource-allocation-graph algorithm is not applicable to___
- 2. which of the following statement is True for Banker algorithm for deadlock-avoidance.
- 3. Which of the following data structures must be maintained to implement the banker’s algorithm , where n is the number of processes in the system and m is the number of resource types: <ol> <li>A vector of length m indicates the number of available resources of each type. If Available[j] equals k, then k instances of resource type Rj are available.</li> <li>An n × m matrix defines the maximum demand of each process. If Max[i][j] equals k, then process Pi may request at most k instances of resource type Rj</li> <li>An n × m matrix defines the number of resources of each type currently allocated to each process. If Allocation[i][j] equals k, then process Pi is currently allocated k instances of resource type Rj.</li> <li>An n × m matrix indicates the remaining resource need of each process. If Need[i][j] equals k, then process Pi may need k more instances of resource type Rj to complete its task. Note that Need[i][j] equals Max[i][j] − Allocation[i][j].</li> </ol>
- 4. In Deadlock Detection Algorithm The wait-for graph scheme is applicable to
- 5. wait-for graph can be obtained from the resource-allocation graph by
- 6. an edge from Pi to Pj in a wait-for graph implies that
- 7. An edge Pi → Pj exists in a wait-for graph if and only if
- 8. a deadlock exists in the system if and only if the wait-for graph contains a
- 9. To detect deadlocks, the system needs to maintain the wait for graph and periodically invoke an algorithm that searches for a cycle in the graph. An algorithm to detect a cycle in a graph requires an
- 10. When should we invoke the detection algorithm?
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