Entrance exams for graduate degree programs vary depending on the type of program you plan to enter. Some tests are general exams that are accepted by a wide variety of graduate school programs, while others are specific to a certain type of graduate or professional school. It is best to check with the graduate school to ascertain which test(s) are required for the program you wish to pursue. The GRE is a general exams for graduate school admission. Take practice exams to understand what type of questions to expect and know the time limits for each section of the exam.
The ® revised General Test is an admissions test for graduate or business schools. It is administered by the Educational Testing Service.