问题:单选题What information is displayed by the command cat/proc/dma?()A whether DMA is enabledB which DMA channels are in useC which DMA mode is in useD general information about DMA on the machine...
Saturday, January 13, 2024
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?()A history-pviB alias emacs=viC HISTCM...
Wednesday, March 13, 2024
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...
Saturday, April 27, 2024
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?()A Run ext2fs ACL.B Use a hard link.C Use a symbolic link...
问题:单选题Which system administration command you can use to update Id.so.cache after the installation of new shared libraries?()A IdconfigB IddC libpathD newlibs...
问题:单选题Which of the following commands makes /bin/foo executable by everyone but writable only by its owner?()A chmod 557 /bin/fooB chmod o+rwx.a+rx/bin/fooC chown 557 /bin/fooD chmod 755/bin/foo...
Thursday, December 7, 2023
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?()A tr ’/r/n’ userlist.txt newlist.txtB tr -c ’/n/r’ newlist.txt userlist.txtC tr -...
Monday, October 23, 2023
问题:单选题With Xorg 7.0, what is the name of the default font server?()A xfservB xfsC fontsD xfsttE fserv...
问题:填空题Which program finds only files that are in your PATH?()...
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?()A SCSI-1 supports only 8 devices including the adaptor.B SCSI-1 supports only 6 dis...
问题:填空题What application can be used in place of xhost? Please enter only the name without path. Answer:()...
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Using vi, you want to save changes to the file myfile with :w!, but vi complains it cannot write to the file. Therefore, you want to check the write permissions on the file. To do this without leaving vi, you type:()A :!ls-I myfileB :/ls-l myfileC e...
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).()...
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?()A cut -d: -f 1,3 /etc/passwdB chop -c 1,3 /etc/passwdC tac 1-3/etc/passwdD fmt -u /etc/passwd...
问题:单选题You wish to kill a process with a PID of 123. Select the command which exiting.()A kill-1 123B kill-9 123C kill-15 123D kill-17 123...