The Armed Services Vocational Aptitude Battery (ASVAB) is a multiple-aptitude battery that measures developed abilities and helps predict future academic and occupational success in the military. It is administered annually to more than one million military applicants, high school, and post-secondary students.

This does not mean the student is interested or not interested in the military.  It is a useful tool for evaluating the strengths and interests of students.  Which then becomes useful when considering career options.