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Here are the conditions necessary for a deadlock to occur; note that all of them are necessary, and none is suf?cient:
1. ?nite resources: the resources are held in a mutually-exclusive way, and they can be exhausted, causing waiting.
2. hold-and-wait: each thread holds one resource while waiting for another.
3. no preemption: threads only release resources voluntarily. No other thread (or the OS) can force the thread to release its resources.
4. circular wait: we have a circular chain of waiting threads.
The question of fairness, regarding page eviction, is a hard one. How do we decide what is fair? Many operating systems use global LRU, where pages from all processes are managed t
We are faced with three major components of the page-fault service time. 1. Service the page-fault interrupts. 2. Read in the page. 3. Restart the processes.
What is an effector process? The effector process is a method that verifies itself.The effector process exists in particular criteria.
Question 1: a) State the different file attributes and briefly explain the operations that can be performed on each files. b) What is a semaphore? Describe why it is impor
What is a binary Semaphore?
Problem: a) The CPU can access 2 storage devices directly. What are these 2 storage devices? b) Define 2 key issues involved in memory management. c) How do processes sha
i need to complete project on lan architceture RAIDs etc
what is file abstraction?
Question: (a) The actual use and scope groups depend on the mode in which a domain is running. There are two domain modes in which you can run a Windows 2000 domain. List and d
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