Question: avoiding deadlocks ,The simplest and most useful model requires that each process declare the ____ of resources of each type that it may need
Answer:
MCQ: avoiding deadlocks ,The simplest and most useful model requires that each process declare the ____ of resources of each type that it may need
Correct Answer:
A. Minimum Number
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Related Questions
- 1. A deadlock-avoidance algorithm dynamically examines the ____ to ensure that a circular-wait condition can never exist.
- 2. In A deadlock-avoidance algorithm The resource allocation state is defined by
- 3. In A deadlock-avoidance algorithm A state is safe if
- 4. consider a system with twelve magnetic tape drives and three processes: P0, P1, and P2. Process P0 requires ten tape drives, process P1 may need as many as four tape drives, and process P2 may need up to nine tape drives. Suppose that, at time t0, process P0 is holding five tape drives, process P1 is holding two tape drives, and process P2 is holding two tape drives. (Thus, there are three free tape drives.) </br> Maximum Needs Current Needs </br> P0 10 5 </br> P1 4 2 </br> P2 9 2 </br> At time t0, Which of the following sequence is a safe sequence ?
- 5. Which of the following stands true for Resource-allocation graph for deadlock avoidance.
- 6. The resource-allocation-graph algorithm is not applicable to___
- 7. which of the following statement is True for Banker algorithm for deadlock-avoidance.
- 8. 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>
- 9. In Deadlock Detection Algorithm The wait-for graph scheme is applicable to
- 10. wait-for graph can be obtained from the resource-allocation graph by
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