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Deadlock Introduction Video Lecture | Crash Course for UGC NET Computer science

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1. What is a deadlock in operating systems?
Ans. A deadlock in operating systems occurs when two or more processes are unable to proceed because each is waiting for the other to release a resource, resulting in all processes being stuck in a state of indefinite waiting.
2. How can deadlocks be prevented in operating systems?
Ans. Deadlocks can be prevented in operating systems using various techniques such as deadlock prevention (ensuring that the conditions necessary for a deadlock cannot occur), deadlock avoidance (ensuring that the system always remains in a safe state), and deadlock detection (identifying and recovering from deadlocks when they occur).
3. What are the necessary conditions for a deadlock to occur?
Ans. The necessary conditions for a deadlock to occur are mutual exclusion (resources cannot be shared), hold and wait (processes holding resources while waiting for others), no preemption (resources cannot be forcibly taken from a process), and circular wait (a circular chain of processes waiting for resources).
4. How does an operating system handle deadlocks?
Ans. Operating systems handle deadlocks by using various algorithms such as deadlock detection and recovery, resource allocation graphs, and banker's algorithm to prevent or resolve deadlocks when they occur.
5. What are some common examples of resources that can lead to deadlocks in operating systems?
Ans. Some common examples of resources that can lead to deadlocks in operating systems include memory, CPU cycles, files, devices, and network connections.
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