Unit 1: Linux Command Line and User Management - Practice Quiz

1 What is a Linux command-line interface primarily used for?

2 Which key combination commonly switches from a graphical session to a Linux virtual console?

3 Which desktop application provides access to a shell prompt?

4 Which command displays the current working directory in Bash?

5 Which command lists files and directories?

6 Which character represents the root directory in Linux?

7 Which command searches a directory hierarchy for files by name?

8 Which command copies a file from one location to another?

9 Which wildcard matches any number of characters in a file name?

10 What does the tilde (~) usually represent in the Bash shell?

11 Which command displays the manual page for ls?

12 What is the pinfo command used to view?

13 What is commonly stored in /usr/share/doc?

14 Which command creates an empty file if the file does not already exist?

15 Which operator redirects command output to a file and overwrites the file?

16 Which program is a command-line text editor commonly available on Linux?

17 What is the main purpose of a Linux group?

18 Which command commonly runs a command with elevated privileges?

19 Which command creates a local user account?

20 Which command changes a user's password in Linux?

21 A RHEL workstation is displaying the graphical login screen. Which key combination commonly switches to a text-based virtual console on TTY3?

22 A user is working in the GNOME desktop and wants to open a terminal from the Run a Command dialog. Which command should the user enter?

23 Which Bash command prints the literal text $HOME/*.txt without expanding either the variable or the wildcard?

24 An application needs a directory for persistent, variable data such as an inventory database. Which location best follows the Linux file system hierarchy?

25 Which command searches /srv and its subdirectories for regular files whose names end in .conf?

26 Which command recursively copies the project directory into /backup while preserving permissions, ownership, timestamps, and symbolic links?

27 A directory contains report1.txt, report7.txt, report10.txt, and reportA.txt. Which pattern matches only report1.txt and report7.txt?

28 What output is produced by the Bash command echo {report,summary}{1,2}.txt?

29 An administrator remembers the useradd command but needs a quick summary of its available options. Which command is most appropriate?

30 An administrator wants to read the manual page describing the format of the /etc/passwd file rather than the passwd command. Which command should be used?

31 Which command opens the GNU Info documentation for the core utilities in the pinfo text-based browser?

32 A package provides a compressed documentation file at /usr/share/doc/example/README.gz. Which command lets an administrator read it without first creating an uncompressed copy?

33 Which command creates an empty file named notes.txt if it does not exist, but only updates its timestamps if it already exists?

34 Which Bash command writes both standard output and standard error from command to run.log, replacing the file's previous contents?

35 After modifying a file in Vim, which command entered in normal mode saves the changes and exits the editor?

36 Which command opens notes.txt in the GNOME graphical text editor while allowing the current shell prompt to remain usable?

37 Which command creates a local group named developers with the specific group ID 4500?

38 A permitted administrator wants a root login shell with root's environment while keeping the action recorded through sudo. Which command should be used?

39 Which command creates a local user named analyst, explicitly creates a home directory, and sets Bash as the login shell?

40 Which command configures the user alice so that her password must be changed after a maximum of 90 days?

41 A RHEL workstation's graphical session is unresponsive, but the kernel and systemd are still running. Which action provides an independent text login without changing the system's boot target or terminating the graphical session?

42 A user opens a new GNOME Terminal window and wants a custom Bash function to be defined automatically. The terminal starts an interactive non-login Bash shell. Which per-user file should normally contain the function?

43 What output is produced by v='a b'; printf '<%s>\n' $v "$v" in Bash?

44 An application must store persistent, host-specific state that changes while the application runs, such as an internal database. Which directory best follows the Linux file system hierarchy?

45 The directory /srv contains a mounted archive file system at /srv/archive. Which command finds regular files beginning with report under /srv without descending into that mounted file system?

46 Files under /data may contain spaces, quotes, or newline characters in their names. Which command safely removes every regular file whose name ends in .tmp?

47 Assume Bash and nullglob are enabled. Which pattern list expands to ordinary names and hidden names while excluding the special entries . and ..?

48 No project1, project2, or project3 directories currently exist. Which single command creates src and doc beneath each of those three directories?

49 Both a command and a configuration-file format are named passwd. Which command opens the manual page describing the /etc/passwd file format rather than the executable?

50 A GNU utility has an Info manual organized as linked nodes, and the administrator wants to navigate those nodes using a text interface. Which command is most appropriate for opening the manual for tar?

51 The httpd RPM is installed, but its documentation directory name includes an unfamiliar version suffix. Which command reliably lists documentation files installed by that package?

52 Red Hat Support requests a diagnostic archive containing logs, configuration details, and system information for a support case. Which command is designed to collect that archive on current RHEL systems?

53 An administrator must continuously monitor /var/log/example.log. The application rotates the log by renaming it and creating a new file with the original name. Which command continues following the new file after rotation?

54 Which Bash command sends both standard output and standard error from producer through tee, so both streams appear on the terminal and are stored in run.log?

55 While editing a file in vi or vim, which ex command deletes every line whose first character is #, without deleting lines containing # elsewhere?

56 From a graphical terminal, an administrator wants to launch gedit, regain the shell prompt immediately, and suppress both standard output and standard error. Which Bash command has the required redirection order?

57 Group research has GID 2000, and many existing files are owned by that GID. An administrator runs groupmod -g 3000 research. What happens to those existing files?

58 A user is authorized through sudo, does not know the root password, and needs a root login-style shell with root's home directory and login environment. Which command is most appropriate?

59 Groups analytics and wheel already exist. Which command creates user maya with a home directory, analytics as the primary group, wheel as a supplementary group, and Bash as the login shell?

60 Which command sets user alice to a maximum password age of 90 days, a warning period of 14 days, and account disabling 7 days after password expiration?