If you have been out of work for 6 months or longer, employers tend to avoid you like the plague. They will automatically think that something must be seriously wrong with you if you are still unemployed. You must be lazy, unmotivated, or an incompetent employee. Of course, that's not fair, but it's how things happen for many job seekers. The only way to combat that stigma is to be incredibly productive during your unemployment. Learn several incredibly effective things you can do that will pay great dividends in your job search.
During your job search, you will encounter many of the same situations on so many occasions that you will just get into a routine. You may find yourself doing many aspects of your job search on autopilot. But during interviews, employers often like to mix things up, and it's important for you to maintain your composure during these situations. Sometimes, they may just be trying to throw you a curveball and see how well you think on your feet. Other times, they will be asking you questions that are actually illegal. Know how to handle yourself in either situation.