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Hello,
I have an exam next week, and I am preparing for it using a practice test I received from George Brown College. Is this sufficient, or should I practice more questions? If so, where can I find additional resources? Also, could you please let me know what questions you got on the exam?
Thank you!

Without knowing where George Brown gets its "practice test" from, it's not possible to answer that. Too much studying is never a bad thing. At the end of the day you need to know, and be comfortable with, the codebook.