- All Exams Instant Download
After modifying GNU GRUB's configuration file, which command must be run for the changes to take effect?
After modifying GNU GRUB's configuration file, which command must be run for the changes to take effect?A . kill -HUP $(pidof grub)B . grub-installC . grubD . No action is requiredView AnswerAnswer: D
Which of the following commands will remove that directory?
A user accidentally created the subdirectory dir in his home directory. Which of the following commands will remove that directory?A . rmdir '~/dir'B . rmdir "~/dir"C . rmdir ~/'dir'D . rmdir ~/dirE . rmdir ~/\dirView AnswerAnswer: E
Which command displays the contents of the Kernel Ring Buffer on the command line?
Topic 1, System Architecture CORRECT TEXT Which command displays the contents of the Kernel Ring Buffer on the command line? (Provide only the command name without any options or path information)View AnswerAnswer: dmesg, /bin/dmesg
Which command displays a list of all background tasks running in the current shell?
CORRECT TEXT Which command displays a list of all background tasks running in the current shell? (Specify ONLY the command without any path or parameters.)View AnswerAnswer: jobs
Which of the following commands brings a system running SysV init into a state in which it is safe to perform maintenance tasks? (Choose TWO correct answers.)
Which of the following commands brings a system running SysV init into a state in which it is safe to perform maintenance tasks? (Choose TWO correct answers.)A . shutdown -R 1 nowB . shutdown -single nowC . init 1D . telinit 1E . runlevel 1View AnswerAnswer: C,D
Which of the following commands can be used to create a USB storage media from a disk image?
Which of the following commands can be used to create a USB storage media from a disk image?A . gdiskB . ddC . ccD . fdiskE . mountView AnswerAnswer: B
Which Bash environment variable defines in which file the user history is stored when exiting a Bash process? (Specify ONLY the variable name.)
Which Bash environment variable defines in which file the user history is stored when exiting a Bash process? (Specify ONLY the variable name.)View AnswerAnswer: HISTFILE
Which file should be edited to select the network locations from which Debian installation package files are loaded?
Which file should be edited to select the network locations from which Debian installation package files are loaded?A . /etc/dpkg/dpkg.cfgB . /etc/apt/apt.confC . /etc/apt/apt.conf.dD . /etc/apt/sources.listE . /etc/dpkg/dselect.cfgView AnswerAnswer: D
Which of the following environment variables overrides or extends the list of directories holding shared libraries?
Which of the following environment variables overrides or extends the list of directories holding shared libraries?A . LD_LOAD_PATHB . LD_LIB_PATHC . LD_LIBRARY_PATHD . LD_SHARE_PATHE . LD_RUN_PATHView AnswerAnswer: C
What is the default nice level when a process is started using the nice command?
What is the default nice level when a process is started using the nice command?A . -10B . 10C . 20D . 0View AnswerAnswer: B
