单项选择题
A./etc/resolv.conf
B./etc/rc.tcpip
C./etc/aliases
D./etc/hosts.equiv
单项选择题 Whatisthedefaultamountoftimethatanautomounteddirectorystaysmounted？（）
单项选择题 AnAIXserverisconfiguredwithastaticIPaddressbutthesystemadministratorwantstheservertogiveoutIPaddressesforclientswhowanttousethedynamichostconfigurationprotocolinsteadofstaticIPaddresses.Howisthisaccomplished？（）
单项选择题 Theorderofnameresolutioncanbecontrolled. Thedefaultis： 1.DNS/BIND 2.NIS 3./etc/hosts Tochangetheorderoftheabovenameresolutions，whichofthefollowingshouldbeused？（）