Sentence 1: The cumulative file version of SP2 is full -- SP1 does not need to be installed -- while SP1 needs to be installed for the client version .
Sentence 2: The full file version of SP2 is cumulative -- SP1 does not have to be installed -- while the client version requires SP1 to be installed .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?