$\backslash$table$[[$P$2,7,3,3,1,,$Tape,Disk,Available$],[$P$3,7,4,3,2,,,,],[$P$4,5,3,0,1,,,,]]$

b$)$ Is the system safe? Why?

Q$8.$ Consider a memory system with a TLB access time of $10ns$ and a memory access time of $110ns($assume the memory access time includes the time to check the TLB$).$ If the effective access time is $10\%$ greater than the TLB access time, what is the hit ratio $H?$

$(3$ marks$)$

Q$9.$ Consider a $24-$bit address space, and a $8K$ page size. We know that the single$-$level page table uses only $\frac{1}{2}$ a page. What would be the size of the page table entry?

$(3$ marks$)$