问题:多选题What does the Filesystem Hierarchy Standard enable? ()Asoftware to predict the location of installed files and directoriesBsoftware to predict the ownership and access rights to files and directoriesCusers to predict the location of installed files and directoriesDusers to predict how the filesystem should be formatted according to need
Saturday, April 27, 2024
问题:单选题Which of the following commands will change all CR-LF pairs in an imported text file, userlist.txt, to Linux standard LF characters and store it as newlist.txt?()Atr ’/r/n’ < userlist.txt > newlist.txtBtr -c ’/n/r’ < newlist.txt > userlist.txtCtr -d /r¯ < userlist.txt > newlist.txtDtr /r¯/n¯ userlist.txt newlist.txtEtr -s ®^M’¡®^J’ userlist.txt newlist.tx
Monday, October 23, 2023
问题:填空题What command with all options and/or parameter will send the signal USR1 to any executing process of program apache2?()
问题:单选题You ran out of space and added a eighth disk to your SCSI-1 system. When you try to start, the system no longer boots. What is most likely the cause of this problem?()ASCSI-1 supports only 8 devices including the adaptor.BSCSI-1 supports only 6 disks per adaptor.CThere is a SCSI-ID conflict that causes that problem.DYou forgot to set the SCSI-ID #8 for the new disk.
问题:填空题What application can be used in place of xhost? Please enter only the name without path. Answer:()
问题:单选题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?()Ahistory-pviBalias emacs=viCHISTCMD=viDset -o viEunset emacs
Wednesday, March 13, 2024
问题:单选题Which of the following commands makes /bin/foo executable by everyone but writable only by its owner?()Achmod 557 /bin/fooBchmod o+rwx.a+rx/bin/fooCchown 557 /bin/fooDchmod 755/bin/foo
Thursday, December 7, 2023
问题:单选题You have run out of disk space on a partition. Which of the following would be an easy way to move data to a new partition without reconfiguring the path to the data in existing applications?()ARun ext2fs ACL.BUse a hard link.CUse a symbolic link.DUse the loopback device.ECreate a block device offset.
问题:填空题Which command (without options) would you use to display how much space is available on all mounted partitions?()
问题:单选题You wish to kill a process with a PID of 123. Select the command which exiting.()Akill-1 123Bkill-9 123Ckill-15 123Dkill-17 123
问题:单选题What information is displayed by the command cat/proc/dma?()Awhether DMA is enabledBwhich DMA channels are in useCwhich DMA mode is in useDgeneral information about DMA on the machine
Saturday, January 13, 2024
问题:填空题Which program finds only files that are in your PATH?()
问题:单选题What command will print a list of usernames (first column) and their corresponding user id (uid, third column) from /etc/passwd?()Acut -d: -f 1,3 /etc/passwdBchop -c 1,3 /etc/passwdCtac 1-3/etc/passwdDfmt -u /etc/passwd
问题:单选题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?()Amount /dev/cdrom /mnt/cdromBmount/dev/cdromCmount -t cdrom /dev/cdrom /mnt/cdromDmount /mnt/cdromEautomount /mnt/hdd /mnt/cdrom
问题:单选题To allow a regular user account to mount and unmount a filesystem (for instance, a cdrom or floppy), which option need to be added to the corresponding line in /etc/fstab?()AnouidchkBalluserCuserDauto
问题:单选题Given the following output: prompt> myapp [1]+ Stopped myapp prompt> Which of the following commands will resume executing the stopped process while allowing the user to continue to type commands at the command prompt?()Abg myappBcontinue myappCexec myappDfg myappEmyapp &
问题:填空题USB fax/modems that conform to this subclass of the Communication Device Class (CDC) vendor neutral standard are Linux compatible (answer is a 3 letter acronym).()