The HiSET® test is one of three tests of high school equivalency that are used in the United States. The others are the General Education Development (GED) exam and the Test Assessing Secondary Completion (TASC). States vary in which tests they offer and will accept for certification purposes. You can see where your state stands, here.
The HiSET® test consists of five subtests, with the listed number of questions and allowed time:
There is no penalty for incorrect answers on this test, so it is in your best interests to attempt an answer for every question.