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單項(xiàng)選擇題

The options on the NFS server using the nfso command have been adjusted. Which of the following tasks are required in order for these changes to survive a system reboot？（）

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

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單項(xiàng)選擇題

Which command can be used to verify that filesystems are being exported by a server？（）

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

單項(xiàng)選擇題

A gateway machine has access to the Internet and is trying to reach a machine on the Internet called cactus.org. Although the gateway machine cannot reach cactus.org， another network across town is able to reach cactus.org. Furthermore， the gateway machine can reach the network across town， but cannot ping the cactus.org. Which of the following tools will best help diagnose the location of the problem？（）

A.iptrace
B.netstat
C.tcpdump
D.traceroute