Which function is used to lock a file

1、Which files can be used together to al

Which files can be used together to allow remote command execution on a server?（）A/etc/.rhosts and $HOME/hosts.equivB/etc/hosts.equiv and $HOME/.rhostsC/etc/rhosts.equiv and $HOST/.rhostsD/etc/hosts.equiv and $HOME/.hosts.equiv

2、Which instrument is used to predict th

Which instrument is used to predict the approach of a low pressure system（）.AAnemometerBFathometerCBarometerDThermometer

3、which command is used to enable CHAP a

which command is used to enable CHAP authentication whit PAP as the fallback method on a serial interface?（）A (config-if)#authentication ppp ch...

4、Which command is used to initialize an

Which command is used to initialize and configure a NIM master?（）A/usr/sbin/nim_initB/usr/bin/installnimC/usr/sbin/nimconfigD/usr/sbin/setup_server

5、Which instrument is used to measure th

Which instrument is used to measure the relative humidity of air?（）AHydrometerBHygrometerCSpectrometerDBarometer

6、Which IEEE standard is used to define

Which IEEE standard is used to define Wi-Fi?（）A IEEE 802.3B IEEE 802.5C IEEE 802.11hD IEEE 802.11cE IEEE 802.11