Quiz submission record for quiz7-1-1 at Mon Aug  2 08:25:49 2004:

Your Answer for Question 1:
Physical address is what can be used to access main memory.  
Virtual address gets translated by a combination of hardware and software to physical memory, and it manages the two levels of memory hierarchy represented by main (physical) memory and secondary storage.

We get a PA from VA by translation via software and harware.

Your Answer for Question 2:
Allocating pages in fixed-size chunks eliminates the need to find a contiguous block of memory to allocate to a program; the operating system needs to find a suffiient number of pages in main memory.

Big chunks simplify protection between the operating system and user programs and increase the efficiency of implementing paging.


Your unique submission ID is quiz7-1-1-cs61c-cl-1091460349-1825.