Courses are of many types and may have completely online forms in which all lectures, assignments, and exams take place via the virtual learning platform. It's easier to manage the student because of this since he is accessible to be trained despite any condition.
Others have a fully offline version also called an on-campus class, meaning the lecture must take place within a classroom on campus. Other assignments also happen in that campus and involve in-class discussion in the real class setting.
Some courses will also be a hybrid or blended, meaning some of the time they are completed online and others in a more traditional classroom environment. This can be a mix of online lectures with in-person labs or discussions, or maybe a mix of online and in-person assignments.
Check the course syllabus: Typically, the course format will be clearly stated within the syllabus.
Contact the course instructor: They are in the best position to provide the most accurate information on how the course will be delivered.
Check the course description: The course description may include the format or learning modality.