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Deadlocks Lecture 6: System Model and Handling Methods

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Deadlocks Lecture 6: System Model and Handling Methods

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Questions and Answers

In the context of deadlock, what is the meaning of 'Mutual Exclusion'?

Only one process at a time can use a resource (correct)

Processes can forcibly take over a resource from another process

Processes must take turns using a resource

Multiple processes can use a resource simultaneously

How is 'Hold and Wait' characteristic related to deadlock?

Processes never hold any resources during execution

Processes hold at least one resource and wait for additional resources held by other processes (correct)

Processes hold resources without waiting for others

Processes immediately release all held resources

What is the significance of 'No Preemption' in the context of deadlocks?

Resources are automatically released after a certain time period

Resources are preemptively taken from other processes

Processes can forcibly release resources from other processes

Resources can only be released voluntarily by the process holding it (correct)

What is an example of 'Hold and Wait' scenario in real life?

A person cooking a meal using multiple ingredients Signup and view all the answers

How does 'Bridge Crossing Example' illustrate deadlock resolution?

By preempting resources and rolling back if a deadlock occurs Signup and view all the answers

What is the primary problem in a deadlock situation?

One process holding a resource and waiting to acquire another resource held by another process Signup and view all the answers

Which condition can lead to the occurrence of a deadlock?

A process holding at least one resource and waiting for additional resources held by other processes Signup and view all the answers

What is the meaning of 'Mutual Exclusion' in the context of deadlocks?

Only one process at a time can use a resource Signup and view all the answers

How can a deadlock be resolved in the context of the 'Bridge Crossing Example'?

By preempting resources and rolling back Signup and view all the answers

Which approach involves preventing a deadlock by ensuring that the four necessary conditions for deadlock do not hold simultaneously?

Deadlock Avoidance Signup and view all the answers

What is the primary characteristic that can lead to a deadlock?

Hold and Wait Signup and view all the answers

In the context of deadlocks, what does 'No Preemption' mean?

A process can release a resource only after completion of its task Signup and view all the answers

Which example illustrates the concept of deadlock resolution through preempting resources and rollback?

Bridge Crossing Example Signup and view all the answers

What is the significance of 'Mutual Exclusion' in the context of deadlocks?