Here is a timeline of virtual memory references, given by the virtual page access:

$1403143141$

Your job is simple: for each scenario below determine whether the virtual page access will lead to a HIT$("$H$")$ as the page is found in the memory of a MISS $("$M$")$ as it is not $($the page must be retrieved from the disk$).$

All pages begin on disk; no pages are in memory at the start $($and thus must be referenced to be brought into memory$)$

a$)$ Policy FIFO, number of memory frame is $2($Please mark H$/$M below each virtual page access$)$

$1403143141$

b$)$ Policy FIFO, number of memory frame is $3$: $($Please mark H$/$M below each virtual page access$)$

$1403143141$

c$)$ Policy LRU, number of memory frame is $2$: $($Please mark H$/$M below each virtual page access$)$

$1403143141$

d$)$ Policy LRU, number of memory frame is $3$: $($Please mark H$/$M below each virtual page access$)$

$1403143141$

$($NOTE: Please copy the table for each scenario to your answer, and then mark H$/$M for each access$)$