The Armed Services Vocational Aptitude Battery, or ASVAB, is not a single test; rather, it is a group of subtests designed to determine the individual skills and abilities of personnel intending to enter the military services.

Learn more about the ASVAB:

The ASVAB is administered year-round at Military Entrance Processing Stations (MEPS) locations throughout the United States, as well as by mobile teams. Officials of the Military Entrance Processing Command proctor the tests.

Check these sites for practice and sample ASVAB test questions. There are plenty of free resources for sample questions out there, so don't pay!