career certification computerscience cs40 cs53 csf0 csg1 datatransmissionsystems ee20 ee21 ee26 ee70 eed0 eef3 eei0 eej0 eg43 electrical electronics electronicsengineering engineering general handhelddevices hardware intelligence(ai) mobile networking networkprotocols opticaldataprocessing professional python radar semantics sensors signalprocessing signals st70 technology telecommunications tp20 trade trades wireless wirelesscommunications