YouaretheadministratorofaWindows2000Professionalcomputer，whichhasa56Kbpsmodem，connectedtoitself.Youwanttheusersonyourcompany’snetworktobeabletoconnecttotheInternetusingyourcomputer.But，youdonotwanttoallowanyotheroperationsthanHTTPandFTP.Whichportswillyouallowthroughthisconnection？（）A.Port80B.Port21C.Port25D.Port81
YouaretheadministratorofaWindows2000Professionalcomputer，whichhasa56Kbpsmodem，connectedtoitself.Youwanttheusersonyourcompany’snetworktobeabletoconnecttotheInternetusingyourcomputer.But，youdonotwanttoallowanyotheroperationsthanHTTPandFTP.Whichportswillyouallowthroughthisconnection？（）
A.Port80
B.Port21
C.Port25
D.Port81