Difference between SK0-002 and SK0-003

Anyone? Sorry I am kinda raiding this forum, this prob one of my last questions in a while regarding this topic. I want to get a 2nd source for Server+ mainly on questions, but I am finding the practice questions sources too expensive for SK0-003. Was wondering if SK0-002 practice questions source would be legitimate. I do expect some changes, but hopefully not as much.