Question

Choose correct options in reference to the following statements:
I. The page fault frequency in virtual memory is reduced when
Locality of reference is applicable to the process.
II. In Belady's Anomaly, if the number of frames is increased, there
is decrease in the number of page faults for certain memory
access patterns.
III. In Optimal page replacement algorithm, the page that has not
been used for the longest period of time is replaced.​

Answer 1

Answer:

Explanation:

If a page fault occurs and all memory frames have been already allocated, then ... Generally, on increasing the number of frames to a process' virtual memory, ... increase in the number of page faults for a given memory access pattern. ... Case-2: If the system has 4 frames, the given reference string on using ...