There is no difference between a good exam and a bad exam. It depends on whether you have a position that suits you. The national examination is almost as difficult as the provincial examination. If it is really more difficult, the national examination will be a little more difficult. Also, as you said, depending on the position you are applying for, the intensity of competition in different positions is different. Generally, the number of applicants will be less for positions that require more. On the contrary, if there are not many restrictions on job requirements, the competition for such positions will be more intense. Now you can prepare with both hands and try both exams. If you pass the exam, don't worry. Review well, and when you are strong, you won't worry about anything.