求Linux高手给解答一下这些选择题![2]16.WhichoptioncannotbespecifiedtoaClientusingtheDHCPprotocol?Choosethebestanswer:A.defaultgatewayB.primaryDNSserverC.subnetmaskD.webproxyserverE.IPaddress17.Whatcomm

Question

求Linux高手给解答一下这些选择题![2]
16. Which option can not be specified to a Client using the DHCP protocol?
Choose the best answer:
A. default gateway
B. primary DNS server
C. subnet mask
D. web proxy server
E. IP address
17. What command can be used to print out system boot messages?
A. bootm
B. bmsg
C. messages
D. dmesg
18. What command can be used to show all variables?
A. set
B. varlist
C. show var
D. show
19. What port does the Squid proxy server use by default?
Choose the best answer:
A. 80
B. 1080
C. 3028
D. 3128
E. 8080
20. How can you see the kernel routing table?
Choose the best answer:
A. netstat -Route
B. netstat -rn
C. netstat -an
D. route show default gw
E. netstat
21. What program can be used to test the smb.conf file for errors?
Choose the best answer:
A. mount
B. test
C. samba --checkparm
D. testparm
E. smbfs
22. What option is used with the useradd
command to specify the user's user id?
A. -u
B. -s
C. -ui
D. -id
23. You have just added a new NFS share to the appropriate file. What must you do to activate the share?
Choose the best answer:
A. reboot
B. exportfs -a
C. ndc restart
D. server nfs start
E. mount -A
24. What command allows you to switch from using Gnome to using KDE?
Choose the best answer:
A. Xconfigurator
B. Xsetup
C. Xwindowconfig
D. switchdesk
E. videocfg
25. Which of the following can be used to
switch your system to run level 1?
A. init 1
B. inittab 1
C. rlevel 1
D. level 1
26. You want to do a system shutdown, but you don t want the shutdown to occur immediately. You want the system to wait 60 seconds before doing the shutdown. What option can be used with the shutdown command to wait 60 seconds before starting theshutdown?
A. shutdown -t 60
B. shutdown -w 1
C. shutdown -c 60
D. shutdown -t 1
27. What run level represents administration mode?
A. 0 B. 1 C. 6 D. 5
28. You want to compile a new kernel. You have already compiled the kernel and modules. How do you install the modules?
Choose the best answer:
A. make modules_install
B. make install
C. make modules
D. make install_modules
E. make bzImage
29. What is the correct syntax to mount an MS DOS formatted floppy disk (do not assume that there is an entry in /etc/fstab)?
Choose the best answer:
A. mount /dev/floppy /mnt/fd0
B. mount -t iso9660 /dev/fd0 /mnt/floppy
C. mount -t vfat /dev/fd0 /mnt/floppy
D. mount -t msdos /dev/floppy /mnt/floppy
E. mdir
30. What file does init processes use as its control file?
A. /etc/inittab
B. /etc/proc
C. /etc/init
D. /etc/initproc

Answer 1

16.17.18.19.20.21.22.23.24.25.26.27.28.29.30
D B A E A C A E A B C B D B D