Operating System Concepts
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Questions and Answers

What is the primary goal of deadlock prevention techniques?

  • To detect and recover from deadlock
  • To prevent deadlock from occurring in the first place (correct)
  • To minimize the cost of recovery from deadlock
  • To allow deadlock to occur and then handle it
  • In a resource allocation graph, what does the absence of a cycle indicate?

  • The possibility of deadlock
  • The presence of deadlock
  • The absence of deadlock (correct)
  • The need for deadlock recovery
  • What is the main characteristic of the 'hold and wait' condition in deadlock characterization?

  • A thread is not holding any resource
  • A thread is waiting for a resource but holding none
  • A thread holding a resource is waiting for another resource (correct)
  • A thread is holding multiple resources
  • What is the purpose of the Banker's algorithm?

    <p>To prevent deadlock</p> Signup and view all the answers

    What is starvation in the context of deadlock?

    <p>The same thread is always picked</p> Signup and view all the answers

    What is the purpose of deadlock detection?

    <p>To detect deadlock and then recover</p> Signup and view all the answers

    Which of the following is a characteristic of mutual exclusion in deadlock characterization?

    <p>Only one thread can use the resource at a time</p> Signup and view all the answers

    What is the purpose of the 'request edge' in a resource allocation graph?

    <p>To represent a thread requesting a resource</p> Signup and view all the answers

    What is the outcome of a 'safe state' in deadlock avoidance?

    <p>A deadlock is impossible to occur</p> Signup and view all the answers

    What is the purpose of the 'assignment edge' in a resource allocation graph?

    <p>To represent a resource allocation to a thread</p> Signup and view all the answers

    What is the condition where a thread is holding at least one resource and waiting for other resources?

    <p>Hold and wait</p> Signup and view all the answers

    What is the purpose of the recovery from deadlock mechanism?

    <p>To detect and recover from deadlocks</p> Signup and view all the answers

    Study Notes

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    Description

    This quiz covers fundamental concepts in Operating Systems, including process synchronization, file management, and thread execution. It also touches on the concept of deadlock and its characterization.

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