Quiz submission record for quiz7-1-1 at Sun Aug 1 23:04:59 2004: Your Answer for Question 1: Physical address is the real addresses of memory in the hardware, while virtual address is just a mapping of addresses to the physical addresses. We can get the PA from VA the virtual page number annd the page offset. Your Answer for Question 2: If the VM system only allocate pages in fixed-size chunks, the implementation of the system will be easier, and the protection between the operating system and user programs will also be simplified. With bigger chunks, the page fault rate will be decreased. With smaller chunks, the cost of implementing the hardware will be decreased Your unique submission ID is quiz7-1-1-cs61c-en-1091426699-1462.