150303-F-HK400-125
Airman 1st Class Brandon Koch, 28th Communications Squadron cyber systems operator, plugs a cable into a network server at Ellsworth Air Force Base, S.D., March 3, 2015. Airmen conduct walkthrough inspections of the server room daily to ensure all cables are functioning properly. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)