Difference between static cache and dynamic cache

Static cache
Dynamic cache
U can not insert or update the cache
U can insert rows into the cache as u pass to the target
The informaticserver returns a value from the lookup table or cache when the condition is true.When the condition is not true, informatica server returns the default value for connected transformations and null for unconnected transformations.
The informatic server inserts rows into cache when the condition is false.This indicates that the the row is not in the cache or target table. U can pass these rows to the target table