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Questions and Answers
What is a cycle in the resource allocation graph?
What is a cycle in the resource allocation graph?
- A necessary condition for a deadlock (correct)
- An indication of a fully utilized system
- A sufficient condition for a deadlock
- An error in the resource allocation
How can deadlocks be handled according to the text?
How can deadlocks be handled according to the text?
- Using deadlock prevention methods to ensure necessary conditions cannot hold (correct)
- Handling deadlocks by avoiding all resource allocation
- Allowing the system to enter a deadlocked state and recovering from it
- Ignoring the problem and assuming deadlocks never occur
What is the main goal of deadlock prevention?
What is the main goal of deadlock prevention?
- To ignore the existence of deadlocks
- To ensure that at least one necessary condition for deadlock cannot hold (correct)
- To allow the system to enter a deadlocked state
- To recover from deadlocks efficiently
In the resource allocation graph, what does a cycle indicate?
In the resource allocation graph, what does a cycle indicate?
Which statement best describes the relationship between cycles and deadlocks in a resource allocation graph?
Which statement best describes the relationship between cycles and deadlocks in a resource allocation graph?
What is the purpose of handling deadlocks in an operating system?
What is the purpose of handling deadlocks in an operating system?
What does the 'Mutual exclusion' condition in operating systems refer to?
What does the 'Mutual exclusion' condition in operating systems refer to?
Which condition of the deadlock problem states that a process holding at least one resource is waiting for another resource held by a different process?
Which condition of the deadlock problem states that a process holding at least one resource is waiting for another resource held by a different process?
In terms of resource management, what does 'No preemption' imply in an operating system?
In terms of resource management, what does 'No preemption' imply in an operating system?
What is the characteristic of 'Circular wait' in the context of the deadlock problem in operating systems?
What is the characteristic of 'Circular wait' in the context of the deadlock problem in operating systems?
To avoid deadlocks, which of the following strategies focuses on breaking one of the conditions necessary for deadlocks to occur?
To avoid deadlocks, which of the following strategies focuses on breaking one of the conditions necessary for deadlocks to occur?
In the context of resource allocation graphs, what does the presence of a cycle indicate?
In the context of resource allocation graphs, what does the presence of a cycle indicate?
What is the purpose of a deadlock-avoidance algorithm in an operating system?
What is the purpose of a deadlock-avoidance algorithm in an operating system?
In the context of deadlock avoidance, when is a system considered to be in a safe state?
In the context of deadlock avoidance, when is a system considered to be in a safe state?
How does the concept of 'resource-allocation state' contribute to deadlock avoidance?
How does the concept of 'resource-allocation state' contribute to deadlock avoidance?
What defines a 'safe sequence' in the context of deadlock avoidance?
What defines a 'safe sequence' in the context of deadlock avoidance?
Which characteristic distinguishes a 'safe state' from an 'unsafe state' in deadlock avoidance?
Which characteristic distinguishes a 'safe state' from an 'unsafe state' in deadlock avoidance?
How does the deadlock-avoidance model differ from other resource management strategies in operating systems?
How does the deadlock-avoidance model differ from other resource management strategies in operating systems?
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