My answer is that, as a pharmacist, you should not focus only on the exams, but you should also be prepared to answer questions being asked by patients, doctors, and co-workers. This is more important than exam questions. That's why when people asked questions, I usually posted links which explain reasons behind those answers.
Pharmacists should be on going training, studying, and reading updated information since medical usages change every day.
You should study as much as you can. If you don't study today, you have to study it anyway. You don't want to hear any surprising questions happening at your work and you can't answer it. You are going to lose face. When I studied, I studied in depth in every section. If you understand in depth, no matter how hard the questions play with you, you can answer it, especially clinical parts. Oh! I owned drug stores for 12 years and worked for product department in pharmaceutical companies for 12 years. I believe that training in companies and working with real patients helped a lot.