Sorry Ranjah but I have to agree with SYDGIRL,
It's really important that you answer these questions yourself and in your own words. All airline interviews can be tough so therefore you have to be honest and fully understand what you are writing about, otherwise you may fall into a situation you cant get yourself out of, especially if they ask questions about what or why you wrote those phrases.
Think carefully about the role of Cabin Crew and what it means and how you can relate it to those questions you have. Take your time but they want to know "your" opinion, you may have to expand on it later. You are applying for this position so you have to fully understand what it means. Good luck.