How do wine pairings at restaurants work?

I've never opted for wine pairings before. I usually just get a bottle. But how do wine pairings work? Are they worth it? For example, say you order a 7 course tasting menu...are there 7 different glasses of wine? How large are the pours? 2, 4, or 6 oz?|||Usually a wine tasting at a restaurant is a different 2 oz. pour for each course. Generally speaking this is a great way to learn about wine, usually the selections are a collaboration between the wine expert at the restaurant and the chef. I would strongly suggest talking with your server abouut each individual wine and why it was choosen to accompany each dish. In addition this is a cost effective manner of tasting a variety of wines and developing your palate. Good luck and try the tasting!|||Another route is going to a restaurant with someone who is knowledgeable about food and wine pairings. Even if you have as few courses as 3-4, your friend can still pair each one with a bottle of wine (if you go with 6-8 friends). It's definitely worth experiencing wines with the perfect food (and vice versa). The taste experience can be quite satisfying!!!!