Quiz submission record for quiz7-1-1 at Mon Aug 2 09:34:07 2004: Your Answer for Question 1: Virtual address is can't be used directly to access main memory, because it is not a real address but an address made to help programmers the burden of figuring out the physical address. On the other hand, physical address is used to access the main memory directly. Virtual page number (front 20 bits invirtual address) is used as an index in the page table that contains physical page number, and that physical page is used as a way to get to the physical address. Your Answer for Question 2: Having fixed-size chunks will give the VM system the regularity. Bigger chunks have a benefit that it can be replaced with rather cheap technology. Smaller chunks are usually fully associativity so they are much lower in the miss rate. Your unique submission ID is quiz7-1-1-cs61c-eb-1091464447-1411.