Is there a typical interview structure?
In general, the employer will introduce the company. He or she will then expect you, the candidate, to show why you should be hired in preference to the other candidates. You are advised to highlight your competences and demonstrate how these correspond with what the employer is looking for to help meet the needs of the company
When is a question out of bounds?
French anti-discrimination legislation is very clear. You can refuse to answer any question that seems inappropriate and/or is not relevant to your candidature for the job in question.