You don't need to know the titles beforehand. You need to be able to structure an essay showing good use of grammar and punctuation, informed opinion etc. it's used as a test of your writing skills because part of an officers role is writing reports.
Your punctuation skills make my eyes bleed.
Asking for recent attendees to give the currently used essay titles for him to practice is most certainly cheating. Think of it this way, when sat facing the board would you have like to have been asked to explain why and how you obtained the current questions prior to AIB and how you think that relates to one of the core principles of being a Naval officer, integrity?
What bolleaux. Any self-respecting candidate will have explored every avenue to increase his chance of success at the AIB and this will be expected. It's not cheating; it's using common sense and initiative to achieve the best outcome. As for the morality lesson; you need to grow up and realise that RN officers live in the real world and not some Dickensian novel. I don't think your pleading to the Captain that you failed to carry out the task because your chivalrous deeds did not match up to the mindset of the enemy, who were being frightfully dishonest and not obeying the rules, will be too well received.