data flow analysis

constant folding

peep hole optimization

DFA and constant folding

optimizing compiler

one pass compiler

cross compiler

multi-pass compiler

0, 200, 500, 600

0, 200, 1000, 1600

200, 500, 600, 800

200, 700, 1300, 2100

is optimized to occupy less space

is optimized to take less time for execution

optimizes the code

All of the above

Allocation

Linking

Reallocation

both Allocation and Linking