Most schools require daily or 3-4 day a week log-in's for class participation.
Undergraduate requirements vary by program and are usually about 60 credit hours, include: The format for online learning involves reading from an electronic textbook, emailing, discussion boards, and chat rooms.
Most schools offer additional help for students who want it via telephone or private email with the instructor.
Some schools require full-time registered nurse employment status to be maintained throughout the program.
But, don't be under the assumption that online school is easy!
Advantages and disadvantages to any style of learning are a personal decision.