Originally Posted by sirjake

From my personal experience, yes, you should be ready. I think it says in the opening of the Official Guide that if you get half, you should be able to get a passing score. That has held true for me. I've never bothered to make sure that I know every one of the questions or get a certain percentage right in anything other than that. I usually don't even answer the questions when going through Instacert. I mentally answer rather than take the time to type in an answer. The score I get here is irrelevant. I just want to be familiar with the material such that I can pass the test.