The Trailhead app is a handy tool for quizzes, tests, and course assessments. It helps you achieve a higher scoreon the exam or quiz by providing you with the right answer to each question.

You will be guided through all the steps to answer the questions and learn how to do quizzes like a pro. You will learn how to submit an assessment for 100% score.

Once the assessment is submitted, you can use the "Trailhead Mark Answers" button to mark the right answers, so that you can verify them before actually submitting the quiz.

If you wish to submit your quiz, then use the "Mark and Submit" button to immediately submit the assessment.

After you mark an answer, you can use the "Validate Answers" button to see whether your selected answer is correct or not.