Your admissions interviewers want to know how your expectations compare to the realities of the job. There is an expected learning curve involved among students once their studies are underway. When expectations differ from the realities of a profession, it often results in switching degrees or changing professions. It's likewise important to understand graduating doesn't always mean a person immediately launches into their career. Show your interviewers that you have a realistic understanding of what your day-to-day life will look like when you graduate. The more realistic your expectations, the more committed you'll seem to your pursuits.
As they state on their site, "Following your professional education, you may choose to pursue a pharmacy residency, a postgraduate training program in pharmacy practice, or a pharmacy fellowship, which is an individualized program preparing you for work in research laboratories."