To disable all tcpip deamons that are not required on a server， which of the following files should be edited？（）

单项选择题A system administrator has created tty2 on a serial port connection to a system.  When attempting to verify the connection the following error is observed：   # cu -ml tty2   cu： 0835-028 The connection failed. NO DEVICES AVAILABLE. Which of the following should be performed to correct this error？（）

A.Create an entry for tty2 in the /etc/uucp/Devices file
B.Re-enter the command as "cu -dml tty2"
C.Create an entry for tty2 in the /etc/uucp/Systems file
D.Re-enter the command as "cu -s 9600 -dh -t -l tty2"

单项选择题WhichofthefollowingisTRUEabouttheateprogram？（）

A.When running ate for the first time it will prompt for all the required information and configure all the required devices
B.The program is used by cu to communicate to a remote system
C.The program is used for remote communications between the host and a remote system using a modem or null modem via a tty port
D.The program ate calls cu to communicate with the remote system

单项选择题Whichofthefollowinglineswillbeaddedtothefile usr lib uucp DevicesontheSLIPclientmachineforaSLIPconnectionontty1？（）

A.direct 9600 - /dev/tty1
B.Direct tty1 - 9600
C.Direct /dev/tty1 - 9600
D.direct tty1 - 9600

单项选择题TheoptionsontheNFSserverusingthenfsocommandhavebeenadjusted.Whichofthefollowingtasksarerequiredinorderforthesechangestosurviveasystemreboot？（）

A.update /etc/rc.nfs
B.issue the chnfs command
C.recycle nfsd
D.unmount and remount the file systems

单项选择题Whichcommandcanbeusedtoverifythatfilesystemsarebeingexportedbyaserver？（）

A.showmount -e ServerName
B.vi /etc/exports
C.startsrc -g nfs
D.exportfs -i FileSystemName