Deadlock and Synchronization in Operating System

What is deadlock prevention in operating systems?

• Avoiding the occurrence of deadlocks by implementing strategies or techniques that prevent the necessary conditions for deadlock.

• Ignoring deadlocks and letting the system crash

• Allowing deadlocks to occur and then resolving them

• Detecting and resolving deadlocks after they occur

What are the necessary conditions for deadlock to occur?

• Resource allocation, hold and wait, no preemption, and circular wait

• Mutual exclusion, hold and wait, no preemption, and circular wait

• Mutual exclusion, hold and wait, preemption, and circular wait

• Resource allocation, process termination, deadlock detection, and deadlock avoidance

What is deadlock detection in operating systems?

• Method used to prevent deadlocks

• Process of terminating all processes in the system

• Algorithm used to allocate resources to processes

• Technique used to identify and resolve deadlocks

What are the different methods for deadlock detection?

• Deadlock detection algorithm using resource allocation graph, Deadlock detection algorithm using wait-for graph

• Deadlock detection algorithm using banker's algorithm

• Deadlock detection algorithm using mutual exclusion

• Deadlock detection algorithm using timeout mechanism

What is deadlock avoidance in operating systems?

• Method used to prevent the occurrence of deadlocks in operating systems.

• Process of terminating all processes in an operating system to prevent deadlocks.

• Method used to detect and resolve deadlocks in operating systems.

• Technique used to intentionally create deadlocks in operating systems.

What is the Banker's algorithm used for in deadlock avoidance?

• Resource allocation

• Deadlock avoidance

• Process scheduling

• Memory management

What is deadlock recovery in operating systems?

• Process of creating a deadlock situation

• Process of resolving a deadlock situation

• Process of ignoring a deadlock situation

• Process of exacerbating a deadlock situation

What are the different techniques for deadlock recovery?

• Deadlock detection and termination, Deadlock prevention, Deadlock avoidance, Deadlock detection and elimination

• Deadlock detection and termination, Deadlock prevention, Deadlock avoidance, Deadlock detection and resolution

• Deadlock detection and termination, Deadlock prevention, Deadlock avoidance, Deadlock detection and eradication

• Deadlock detection and termination, Deadlock prevention, Deadlock avoidance, Deadlock detection and recovery

What is a semaphore in operating systems?

• A semaphore in operating systems is a synchronization object that controls access to a shared resource.

• A semaphore in operating systems is a programming language.

• A semaphore in operating systems is a type of computer hardware.

• A semaphore in operating systems is a type of computer virus.

What are the different types of semaphores?

• mutex semaphore

• binary semaphore, counting semaphore

• reader-writer semaphore

• named semaphore