Only those people are eligible for this test that are more than 18 years old, so if you are less than 18 years old you can take a test but you will only get diploma when you turn into 18 years old. Most of the people believe that GED test is available online and you can take the GED test online but it is the common misconception. Websites offer free Online GED preparation classes only. Test is conducted in certified test centers only. GED online test is not accepted by any institute or company where you want to do a job.
One of the main disadvantages of this diploma is that employers or colleges will always consider high school diploma holder over a General Education Diploma holder. Some colleges require CAT or ACT after completing GED to make you eligible for their admission test. You cannot earn scholarship after scoring high in GED test; you need to score high in CAT to earn scholarship.