Suppose there are two processes P1 and P2 whose 1KB address spaces are allocated in physical memory with base relocation (only base, no bounds). Suppose P1 has a base equal to 1024 and P2 has base equal to 4096. Which of the following virtual memory addresses can P1 use that will give it access P2's memory?

Consider a system that has a 16KB address space and 64 byte pages in a two-level page table. How many page directory entries (PDE) are there assuming PTEs and PDEs are 4 bytes each?

Consider a system that has a 16KB address space and 64 byte pages in a two-level page table. How many pages are required to store the page directory (assuming each page directory entry (PDE) is 4 bytes)?

Which of the following tasks would have improved performance if the OS prefetches the next page along with the requested page from disk on page selections?