*********
Problem 1
*********
1. 28

2. 
a) 2
b) 20/28

3.
a) 2
b) 8/28



*********
Problem 2
*********
1. c
2. a
3. d
4. d
5. d
6. b
7. b
8. d
9. b
10. fork, setjmp
11. b

**********
Problem 3
**********
 2,4,6,7,12

**********
Problem 4
**********
a) 5
b) strong: a, b, d, main
   weak: c
c) in .rodata
d) c is defined in data.c after main.c is compiled
e) x86-64
f) {1,1}

**********
Problem 5
**********
virtual | physical
x8f0f   | --------
------- | 0x4690
xa400   | x7300
x2933   | xEC33
x2839   | ------

**********
Problem 6
**********
# levels: 3
size of table at each level: 6,6,6


31-26 VPN1
25-20 VPN2
19-14 VPN3
13-0 Offset

64>=x>=50