To be initially selected to enter the military at all, you need to do well on the ASVAB, in particular four of the eight tests that make up the Armed Forces Qualifying Test (AFQT). So it is important to focus on those four tests: Arithmetic Reasoning, Word Knowledge, Paragraph Comprehension, and Mathematics Knowledge. You need to score well on those four tests in order to reach the minimum AFQT score to even be considered for enlistment. ... The higher your score, the more job and training options you have. Once you meet the selection criteria, the second step is classification. That means a review of your eight scores in various combinations, called line scores, to see which jobs/training program you are eligible for. Written by a former key member of the ASVAB team at the Department of Defense, "McGraw-Hill's ASVAB" provides you with insider advice to achieve exam success.