Dirty page in a page table - Properties,Features - Operating System

Q.  Which of the following statements is true for the dirty page in a page table?
- Published on 28 Aug 15

a. Helps to maintain LRU information
b. Allows only read on a page
c. Helps to avoid unnecessary writes on paging device
d. None of the above

ANSWER: Helps to avoid unnecessary writes on paging device

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