10 Questions
What happens to the number of page faults in a demand paging system with LRU as the replacement algorithm?
Decreases
What is the consequence of adding more memory to a system with certain types of page replacement algorithms?
Number of page faults increases
What happens to the number of page faults when increasing memory (number of pages in main memory) in a system with LRU replacement algorithm?
Decreases
What is the Clock Replacement Algorithm also known as?
Second-Chance Algorithm
What is the purpose of the use bit in the Clock Replacement Algorithm?
To indicate the page has been referenced
What happens when a page is replaced in the Clock Replacement Algorithm?
The use bit is set to 0
What happens when the OS scans the buffer in the Clock Replacement Algorithm?
The frame with use bit 0 is replaced
What happens to the use bit during the search for replacement in the Clock Replacement Algorithm?
It is set to 0
What is the performance of the Clock Replacement Algorithm compared to LRU?
Close to that of LRU
What is the purpose of the circular buffer in the Clock Replacement Algorithm?
To consider the set of pages candidate for replacement
This quiz covers the implementation of demand paging in operating systems, including the use of resident bits and page tables to manage memory.
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