Depending on your resume and perhaps a phone interview beforehand, you'll be asked by either the Desktop Support manager or CIO regarding a few questions related to computer topics and perhaps other topics like printers. Then you'll need to take multiple questions test that are somewhat basics on customer services, computer network, and etc.

Some departments in this company may vary. But be aware that there may be possible test provided unexpectedly the moment you come in for the actual interview in person base on the title you applied for.