Prerequisites and advisories for courses at Santa Monica College

I am registering for classes for my first semester at California community college, I am planning to transfer to UCSD as computer science major, but I notice that most low-division major courses accepted by UCSD have prerequisites or advisories, I wanna know if that is common for all students cuz Im worried I can’t fulfill the requirement to transfer in two years.

Others can help you better if you name the specific courses and their prerequisites or advisories.