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CompTIA認(rèn)證考試LX0-101單項(xiàng)選擇題每日一練(2019.08.01)

單項(xiàng)選擇題
You have just added a CD.ROM drive （/dev/hdd） to your system and have added it to yourfstab. Typically you can use which of the following commands to mount media in that drive to /mnt/cdrom？（）
A. mount /dev/cdrom /mnt/cdrom
B. mount/dev/cdrom
C. mount -t cdrom /dev/cdrom /mnt/cdrom
D. mount /mnt/cdrom
E. automount /mnt/hdd /mnt/cdrom
單項(xiàng)選擇題
Which system administration command you can use to update Id.so.cache after the installation of new shared libraries？（）
A. Idconfig
B. Idd
C. libpath
D. newlibs
單項(xiàng)選擇題
Many people like the vi text editor but the default bash command line editor recognizes emacs keystrokes. What command entered into a bash initialization file will have bash recognize vi keystrokes after login？（）
A. history-pvi
B. alias emacs=vi
C. HISTCMD=vi
D. set -o vi
E. unset emacs
單項(xiàng)選擇題
You wish to kill a process with a PID of 123. Select the command which exiting.（）
A. kill-1 123
B. kill-9 123
C. kill-15 123
D. kill-17 123
單項(xiàng)選擇題
What command will print a list of usernames （first column） and their corresponding user id （uid， third column） from /etc/passwd？（）
A. cut -d： -f 1，3 /etc/passwd
B. chop -c 1，3 /etc/passwd
C. tac 1-3/etc/passwd
D. fmt -u /etc/passwd

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