单项选择题
Whenenablingattyporttobeusedforacusession,whatmustbedoneonthesystem?()
A.smittty;takethedefaultsandcreatethedesiredtty
B.lsdev-Cctty;checktoseeifthedesiredttyexists,ifnotcreateusingsmitttyAddalinesimilarto;Directtty0-9600directto/etc/uucp/DevicesVerify/etc/uucp/Dialershasthefollowingline;direct
C.Installbos.net.uucpandthefirstavailablettywillbeconfiguredforusebyacusession
D.RuntheAsynchronousTerminalEmulation(ate)programanditwillconfigureattyportforacusession