What question bank is this?

I obtained some practice questions from a friend and the files are called question bank then some sort of description as to the nature of the questions withing. Each question has a Question ID: xxxxx. It basically goes through the material section by section. Does anyone know who the provider of these questions may be and if they are a reliable source for studying? Thanks.

I have these files too (doc files). They don’t seem to be too reflective of what we could expect in the exam. The questions seem to be way too straightforward. I would assume that these are really old questions.