Question: A set {P0, P1, ..., Pn} of waiting processes must exist such that P0 is waiting for a resource held by P1, P1 is waiting for a resource held by P2, ..., Pn−1 is waiting for a resource held by Pn, and Pn is waiting for a resource held by P0.This condition for deadlock is refered to as :
Answer:
MCQ: A set {P0, P1, ..., Pn} of waiting processes must exist such that P0 is waiting for a resource held by P1, P1 is waiting for a resource held by P2, ..., Pn−1 is waiting for a resource held by Pn, and Pn is waiting for a resource held by P0.This condition for deadlock is refered to as :
Correct Answer:
A. Mutual exclusion
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Related Questions
- 1. Deadlocks can be described more precisely in terms of a directed graph called a
- 2. Which of the following statements is TRUE for dealing with the deadlock problem: <ol> <li>We can use a protocol to prevent or avoid deadlocks, ensuring that the system will never enter a deadlocked state.</li> <li>We can allow the system to enter a deadlocked state, detect it, and recover.</li> <li>We can ignore the problem altogether and pretend that deadlocks never occur in the system.</li> </ol>
- 3. To ensure that deadlocks never occur, the system can use <ol> <li>deadlock prevention scheme</li> <li>deadlock-avoidance scheme</li> <li>deadlock-detection scheme</li> <li>deadlock-recovery scheme</li> </ol>
- 4. Deadlock Prevention Scheme can applied if:
- 5. For Deadlock Prevention which of the following condition Stands TRUE: <ol> <li>The mutual exclusion condition must hold</li> <li>hold-and-wait condition never occurs in the system</li> <li>No Preemption condition does not hold</li> <li>Circular Wait condition never holds</li> </ol>
- 6. In Deadlock Prevention Scheme ,The mutual exclusion condition must hold if:
- 7. In Deadlock Prevention Scheme ,To ensure that the hold-and-wait condition never occurs in the system if:
- 8. To ensure that the hold-and-wait condition never occurs in the system Which of the following protocol should be used
- 9. To ensure that the hold-and-wait condition never occurs in the system In Deadlock Prevention Scheme,which of the following is the major disadvantages of the protocol used. <ol> <li>Swapping</li> <li>resource utilization may be low,</li> <li>starvation</li> <li>page fault</li> </ol>
- 10. The third necessary condition for deadlocks is that there be no preemption of resources that have already been allocated. To ensure that this condition does not hold, Which of the following protocol should be used.
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