单项选择题
A system administrator would like to reset statistics to initial values prior to collecting device statistics on ent0 interface. Which of the following commands should be run to accomplish this？（）
A. netstat -v ent0 B. chdev -l ent0 -a reset=true C. entstat -r ent0 D. Ethernet interface values cannot be reset
单项选择题 WhichofthefollowingcommandsshouldbeusedtoshowDNSinformation？（）
单项选择题 Whenmonitoringasystemusingvmstatwithaninterval，themetricsunderpageporepresentwhichofthefollowingphrases？（）
单项选择题 While monitoring a system that is CPU bound， which of the following output is most likely to occur？（）
