Like stated above...wear a tie! The Amir and the CEO all wear business suits and ties when I see them on tv, so when showing up at a large international company for interview best to not stand out as only one without a tie.
You don't have much experience but look over your logbooks and maybe there are small or less dramatic stories, but am sure you can find some situations that satisfy question.
They are trying to know you in 20 minutes, how you make decisions, how you deal with others, deal with conflict, can you be assertive ? Probably have some stories to tell, to show these qualities maybe even flying with a flight instructor in 172?
I don't know what's in latestpilotjobs or the price but have heard some say it was worth it.