Which of the statements below is incorrect about page replacement? when a page f

Question

Which of the statements below is incorrect about page replacement? when a page fault occurs the operating system has to choose a page to evict from memory, to make room for the incoming page in a virtual memory system, pages can be either clean or dirty depending on the time it takes to load them it is possible to pick a random page to evict, however system performance is much better if a page that is not heavily used is chosen the problem of page replacement also occurs in the cache memory, as well as, in web servers' web pages caching

Explanation / Answer

The answer is as follws:
The incorrect option is 2
In virtual memory system , pages can be either clean or dirty depending on the time it takes to load them
It is incorrect because the dirty/clean concept is linked with modification of pages rather than their loading time.

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