101-400 Exam Questions

The command used to determine a file's type is

Many people like the vi text editor but the default bash command line editor recognizes emacs keystrokes. What command entered into abash initialization file will have bash recogni...

User Joseph has successfully extracted and compiled a program from source code. Installing the binaries produces errors. What is the most likely reason?

What RPM command would show you detailed information for a package called openssh- 3.6.i386.rpm?

In GRUB's configuration file you find the line Root (hd1,4) What is corresponding device name on a Linux system?

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

Which of the following commands can be used to instruct the init process to switch runlevels? (Choose TWO correct answers)

What can the tee command be used for?

Which key do you press to switch to normal mode in vi?

Which of the following commands will replace every instance of the word list with LIST from the file myfile.txt and print the results on the screen?

Which of the following commands will NOT execute the bash script /usr/local/bin/runme.sh?

Bob accidentally created the subdirectory \bobsdir in his home directory. He tried to remove the subdirectory with the command rmdir \bobsfile only to receive the error, "No such f...

While editing a file in vi, you realize that you are changing the wrong file. What vi command sequence will allow you to quit without saving your changes?

Which command will allow an administrator to adjust the number of mounts after which an existing filesystem will be checked by e2fsck?

Which of the following is true when hard-linked files are present?

After modifying LILO's configuration file, what command should you run for the changes to take effect?

The file myfile.txt contains the following data: joe:x:100:100:Joe:/home/joe:/bin/bash mike:x:101:101:Mike:/home/mike:/bin/sh kevin:x:102:102:Kevin:/home/kevin:/bin/sh matt:x:103:1...

Which TWO runlevels should never be declared as the default runlevel?

After modifying GRUB's configuration file, what command should you run for the changes to take effect?

You are trying to make a hard link to an ordinary file but ln returns an error. Which of the following could cause this?

When in Normal mode in vi, which command character can be used to begin a reverse search of the text?

To ensure that a running process continues to execute after you log out, the process should be started with what command?

Which signal is sent by the kill command by default?

What is the purpose of the Bash built-in export command?

Given the following output: prompt> myapp [1]+ Stopped myapp prompt> Which of the following commands will resume executing the stopped process and make it the current job?

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...

Which of the following statements is a TRUE difference between GRUB Legacy and GRUB 2?

Which of the following commands can be used to perform a full text search on all available packages on a Debian system?

What effect does the sticky bit have when set on a directory?

Identify the proper device for the third partition on the only SCSI drive on the system.

What is the purpose of the xargs command?

You are writing text in vi. Now you want to save your changes and exit. Which TWO sequence of inputs will accomplish this?

Which option to the tee command will cause the output to be concatenated on the end of the output file instead of overwriting the existing file contents?

Which of the following commands are common Linux commands for file management? (Choose three correct answers.)

Which of the following examples for Bash file globbing matches a file named root-can-do-this.txt when used in the directory holding that file? (Choose three correct answers.)

Which option to the tee command will cause the output to be concatenated on the end of the output file instead of overwriting the existing file contents?

What is the purpose of the xargs command?

Which of the following commands can be used to create a new file that is 100kB in size?

When using regular expressions, which of the following characters match the beginning of a line?

Which of the following statements is correct for a command line ending with a & character?

Which of the following commands will produce the following output?

Which of the following commands print the current working directory when using a Bash shell? (Choose two.)

Which signal is sent by the kill command by default?

Which of the following command lines creates or, in case it already exists, overwrites a file called data with the output of ls?

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

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

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

Which of the following are modes of the vi editor? (Choose two.)

Which of the following shell commands makes the already defined variable TEST visible to new child processes? (Choose two.)

Which of the following commands changes all occurrences of the word "bob" in file data to "Bob" and prints the result to standard output?