Distance education allows students to learn without being physically present with an instructor or other students. Course content is delivered through technology like the internet or prerecorded programs, and students and instructors communicate online. Some advantages of distance education include flexibility, no commuting, lower costs, and the ability to learn while working. However, there is also a lack of social interaction, not all learning styles may be suitable, and some employers don't accept online degrees. Students in distance education can be evaluated through online exams, surveys, and assignments to assess their knowledge. Criteria used for evaluation include projects, project reports, exam results, assignment results, and student interviews.