hello java5,
yes the consulate will ask for the LC and they will verify against your w2s (for any year) or sum of all paystubs (if you apply in current year). So make sure your w2 or paystub salary (multiplied by 12 if monthly) is equal or greater than the prewailing wage mentioned on your LCA. As long as your w2 salary > prewailing wage, you are cool. Otherwise, you need to give lot of explanation and its not fun. Please be careful as it is a mess to get through that situation now a days.
Take care,
VJ