Once upon a time, it was considered a faux pas for interviewers to ask about your family life or political affiliations.  However, as many jobs are now filled through social networking, that is friends setting up other friends, it is infinitely more common to be asked about those or other personal topics during a job interview.

It is illegal to discriminate based on gender, race, national origin, marital status, sexual preference, religious belief, age or disability. Interviewers usual...