101-400 Exam Questions

Which of the following commands is used to update the list of available packages when using dpkg based package management?

Which of the following commands overwrites the bootloader located on /dev/sda without overwriting the partition table or any data following it?

Which of the following commands can be used to create a USB storage media from a disk image?

In Bash, inserting 1>&2 after a command redirects

What command will generate a list of user names from /etc/passwd along with their login shell?

In a nested directory structure, which find command line option would be used to restrict the command to searching down a particular number of subdirectories?

Which of the following commands will load a kernel module along with any required dependency modules?

You are having some trouble with a disk partition and you need to do maintenance on this partition but your users home directories are on it and several are logged in. Which comman...

During a system boot cycle, what is the program that is run after the BIOS completes its tasks?

The message "Hard Disk Error" is displayed on the screen during Stage 1 of the GRUB boot process. What does this indicate?

Which configuration file should be modified to disable the ctrl-alt-delete key combination?

The system is having trouble and the engineer wants to bypass the usual /sbin/init start up and run /bin/sh. What is the usual way to pass this change to the kernel from your boot...

You want to preview where the package file, apache-xml.i386.rpm, will install its files before installing it. What command do you issue?

Which RPM command will output the name of the package which installed the file /etc/exports?

Which of the following commands can be used to enable a file for paging and swapping?

What command will uninstall a package but leave its configuration files in case a package is re- installed?

Which command is used to query information about the available packages on a Debian system?

The GRUB_TIMEOUT parameter specifies a timeout period when booting in what unit of time?

Which of the following apt-get commands will install the newest versions of all currently installed packages without removing any packages or installing new packages that are not a...

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?

When should grep -F or the fgrep command be used to search the content of text files?

Which of the following is a limitation of the cut command?

In the command foo < bar | foobar, which ONE of the following statements is correct?

What is the default process priority when a process is started using the nice command?

Which of the following commands will print the first few lines of a text file to the shell?

Which signal is sent to a suspended process in order to have it resume execution?

What is the purpose of the & character at the end of a command line?

Which command will show you the contents of a gzip compressed tar archive?

What command will display all of the background tasks running in the current shell?

Which of the following commands will print important system information such as the kernel version and machine hardware name?

In bash, inserting 2>&1 after a command redirects

Which command will convert all tab characters in a file to spaces and print that to standard out?

Once a shell variable has been created, how can the variable be removed from the environment?

Which directory contains additional information about installed packages?

Which of the following commands will NOT update the Modify timestamp on the file /tmp/myfile.txt?

Pressing the Ctrl-C combination on the keyboard while a command is executing in the foreground sends which of following signal codes?

What does the + symbol mean in the following grep regular expression: grep '^d[aei]\+d$' /usr/share/dict/words

You have created a long letter and after you are done you notice that you used the name "Bob" many times but you forgot to capitalize it in many instances. Which command would repl...

When in Normal mode in vi, which command character will insert a blank line below the current cursor position and place the insert cursor at the beginning of the new line?

What is the effect on the grep command when the -v option is used?

While editing a file in vi, the file changes due to another process. Without exiting vi, how can the file be reopened for editing with the new content?

In order to use the output of ls to overwrite a file called bazz, which of the following command lines would you use?

When piping the output of find to the xargs command, what option to find is useful if the filenames have spaces in them?

What is the purpose of the xargs command?

You are experimenting with a binary in /tmp/foo.d that expects its configuration file at /etc/foo.conf. You don't want to save it there, but use a symbolic link to /tmp/foo.d/foo.c...

Which of the following Linux filesystems pre-allocates a fixed number of inodes at the filesystem's make/creation time, and does NOT generate them as needed?

You have just added a CD-ROM drive (/dev/hdd) to your system and have added it to your fstab. Typically you can use which of the following commands to mount media in that drive to...

What does the command mount -a do?

What would the following line accomplish if run as root? chown -R bert /home/bert/*

Which one of the following programs will only find files that are in your PATH?