单项选择题
A.at0 B.en0 C.et0 D.tr0
Whichofthefollowingclassaddressesisreservedformulticast...
单项选择题Which of the following class addresses is reserved for multicast？（）
A. Class A B. Class B C. Class C D. Class D
WhichofthefollowingcommandswillNOTdeterminetheslotlocat...
单项选择题Which of the following commands will NOT determine the slot location of an Ethernet adapter in a system？（）
A.lsattr -El B.lsdev -C C.prtconf D.lscfg -l
Whichofthefollowingfilesshouldcontainthestatement"hosts...
单项选择题Which of the following files should contain the statement "hosts=local， bind"？（）
A./etc/hosts B./etc/irs.conf C./etc/netsvc.conf D./etc/resolv.conf
