how does jos manage the memory areas which are inaccessible from the user environment, i.e., kernel memory? group of answer choices by setting their corresponding page directory or page table entries to have their pte p as 0 to remove access from the user privilege level. jos is just an educational os, so it does not take care of such privilege isolation in its virtual memory management. by setting their corresponding page directory or page table entries to have their pte w as 0 to remove access from the user privilege level. by setting their corresponding page directory or page table entries to have their pte u as 0 to remove access from the user privilege level.