What's the point of your test? I could use google for anything I don't know and how would you know I'm being honest with you?
I guess you didn't read that the test was open-book, meaning that you are free to refer to scripture either from a paper Bible or digitally online. Furthermore, why is that an appropriate answer from you but not from me? And why shouldn't either of us be free to consult useful resources? In my profession, we used reference books and searched archives repeatedly. If I wanted to discuss the Ten Commandments, I would look them up despite having a basic understanding of what they say. The first few are about God, a couple about stealing, lying, coveting, one about honoring the sabbath and one about honoring parents. But if I were in a discussion of the subject other than one like this, I'd have the text in front of me.
The eschatology thing was too open-ended. Various writers on the subject can't agree on what comprises eschatology. You wanted three sentences, and it seemed like you were preparing to grade it according to your own subjective understanding of what the question was asking for. It's also an irrelevant topic to me, and not a fit test of biblical competence. Where the believer and the skeptic disagree is in areas like internal contradictions, errors in science and history, prophecy, and the like. That's where the skeptic becomes most proficient in biblical matters even if he's an ex-Christian.
When I was a Christian, I studied the theology - the things believers believe that assume the existence of the biblical god and that the scriptures are its revelation. What did Elijah say and do? What did Isaiah prophecy? What do the psalms teach us? What are the signs of the end times? Eschatology goes into this category. None of that matters to me any more for obvious reasons, just as I suspect that like me, you don't care what the analogous answers are in Islam.
When I say that most skeptics understand the Bible better than most believers, I'm not discussing the theology. I'm talking about the ability to understand what any given passage means. I'm talking about the disagreements believers and unbelievers routinely have over the meaning of scripture. Unbelievers aren't going to argue theology except possibly where it affects their lives, as with the abortion discussions, for example. They don't care about whether baptism should be by sprinkling or immersion, nor what weekday the sabbath falls on, and wouldn't get involved in such a discussion. Nor one on Old Testament eschatology. That's theology as I've defined it. I realize that some use a broader definition to include the Bible as literature and the cultural impact of the Bible through history, but separate those two out because they're academic topics that, unlike doctrinal disagreements between believers, might be of interest to an unbeliever.
Too bad you weren't willing to take my quiz. We could have compared and discussed our answers. It might have been instructive for both of us.