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Explain Deadlock Prevention-Resource allocation graph allocation
Resource allocation graph algorithm: Using this algorithm we are able to actually know if there exists in the system. For the reason that if there exists a cycle in the graph then there is a deadlock. In this graph we have acquired both the process and the resources. There is as well request edge and assignment edge.
What do you mean by semaphore? Semaphore : A synchronization variable that acquires on positive integer values. Invented by the Dijkstra P (semaphore): an atomic proce
Q. What merit is there in having different time-quantum sizes on different levels of a multilevel queuing system? Answer: Processes that require more frequent servicing for ins
Contiguous allocation: Every file will be allocated contiguous space in the memory. Allow the block size be 1K If a 50K files desires to be allocated space after t
Question: In a deadlock, processes never finish executing and system resources are tied up, preventing other jobs from starting. Deadlocks can be characterised by a set of cond
What are the different directory structures? Explain each type. There are five dissimilar directory structures: 1. Single level directory 2. Two level directory
Question: (a) Modern processors operate in one of two modes: one for the operating system and one for applications. What is the purpose of having these two modes? What are
what is the need-to-know principle? why is it important for a protection system to adhere to this principle?
What is the different between basic synchronization and high level synchronization
Explain the Per Thread Scoping Thread-level programming introduces new twists for application-level variable scoping. Threads are commonly used in one of two ways. To ex
Define Page stealing Page stealing is taking page frames another working sets
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