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Q. Consider the following page-replacement algorithms. Rank the algorithms on a five-point scale from "bad" to "perfect" according to their page-fault rate. Detach those algorithms that suffer from Belady's anomaly from those that don't.
1 FIFO replacement
2 Optimal replacements
3 LRU replacements
4 Second-chance replacement
Answer:
What is process control block? Every process is represented in the OS by a process control block. It has many pieces of information associated with an exact process.
Another solution then would be to keep a pool of threads. Whenever a new task arrives, the system would simply get a thread from pool and set that thread to work on the given task.
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Ask question #Minimum 100 difference between bounded and unbounded buffer words accepted#
Question : (a) In the demand paging system, when a process tries to access a page that was not brought into memory, a page fault occurs that involves a series of actions. The
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