There are several websites online that offer free practice driver's license tests, including Driving-Test.org and DriversPrep.com. Both DriversPrep.com and Driving-Test.org allow a test taker to select the state needed to practice for and selects questions for that specific state.
After selecting the state where the driver needs to take the test, DriversPrep.com shows the necessary score needed to pass. Both websites use a multiple-choice format on the tests and provide the correct answer after selection of an answer. The websites offer test questions on driving rules and various traffic signs that might appear on the actual test. Driving-Test.org provides multiple practice tests for each state.