单项选择题
A.PING
B.NSLOOKUP
C.TRACERT
D.IPCONFIG
单项选择题 WhichofthefollowingwouldbetheBESTprocessforthetechniciantofollowwhenbeginningtodiagnoseaunitatacustomerssite？（）
单项选择题 Whichofthefollowingstagesinthelaserprintprocessattractstonertothelatentimageonthephotoconductor？（）
单项选择题 Thecustomerhasadedicatedinkjetfaxmachinethatisusedtosendandreceivefaxesonlyfromthecorporateoffice.Theusercomplainsofstreaksonthereceivedfaxeswhiletheinternalself-printsarefine.Whichofthefollowingshouldatechnicianrecommend？（）