Linux Admin IQ Test
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- 1.
The previous system administrator put useless messages at login, what file do you edit to change the system message?
- A.
/etc/motd
- B.
/etc/str
- C.
/etc/strtms
- D.
/etc/.conf
Correct Answer
A. /etc/motdExplanation
The correct answer is /etc/motd. The message of the day (motd) file is located in the /etc directory and is used to display a custom message to users when they log in to the system. By editing this file, the system administrator can change the system message and remove any useless messages that were previously added by the previous administrator.Rate this question:
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- 2.
Users on your network cannot print to a Linux printer. You decide to restart the printer daemon, which command would achieve that?
- A.
Topq printer-name
- B.
Enable printer-name
- C.
Restart printer-name
- D.
Up printer-name
Correct Answer
C. Restart printer-nameExplanation
The correct answer is "restart printer-name." To solve the problem of users on the network being unable to print to a Linux printer, restarting the printer daemon is a possible solution. The "restart" command followed by the name of the printer would initiate the restart process for the printer daemon, potentially resolving the printing issue.Rate this question:
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- 3.
Which file does Linux use to resolve hostnames?
- A.
/etc/hostname.conf
- B.
/etc/dns.conf
- C.
/etc/host.conf
- D.
/etc/resolve.conf
Correct Answer
C. /etc/host.confExplanation
Linux uses the /etc/host.conf file to resolve hostnames. This file contains configuration settings for the hostname resolution process. It allows the user to define the order in which the system should query different sources, such as DNS or the hosts file, to resolve a hostname to an IP address. By configuring the /etc/host.conf file, users can customize the hostname resolution behavior according to their specific requirements.Rate this question:
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- 4.
What is "tin"?
- A.
Terminal Interpreter
- B.
The command to change the time
- C.
The command to compare text files
- D.
A newsreader
Correct Answer
D. A newsreaderExplanation
"Tin" refers to a newsreader, which is a software application used to read and organize news articles from various sources. It allows users to subscribe to different news feeds, browse articles, and manage their news subscriptions. This term is commonly used in the context of internet news and online forums.Rate this question:
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- 5.
What are the file attributes for executing Perl programs?
- A.
666
- B.
755
- C.
766
- D.
777
Correct Answer
B. 755Explanation
The file attributes for executing Perl programs are 755. This means that the owner of the file has read, write, and execute permissions, while others only have read and execute permissions. This allows the owner to modify and execute the Perl program, while others can only read and execute it.Rate this question:
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- 6.
What is bash?
- A.
Something you do to a watermelon
- B.
A command to delete multiple files
- C.
A network bit format
- D.
A command shell
Correct Answer
D. A command shellExplanation
Bash is a command shell, which is a program that provides a command line interface for users to interact with the operating system. It is commonly used on Unix-based systems and is known for its powerful scripting capabilities. Bash allows users to execute commands, run scripts, and automate tasks, making it a fundamental tool for system administration and programming.Rate this question:
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- 7.
What is the DOS LPT1 port in Linux?
- A.
/dev/lpt0
- B.
/dev/lpt1
- C.
/dev/lp0
- D.
/dev/lp1
- E.
DOSLPT1
Correct Answer
C. /dev/lp0Explanation
The correct answer is /dev/lp0. In Linux, the DOS LPT1 port is represented by the /dev/lp0 device file. The /dev/lp0 device file is used to access the parallel port, which is typically used for connecting printers. This device file allows Linux users to interact with the parallel port and send data to connected devices such as printers.Rate this question:
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- 8.
What is the minimum memory requirements for XFree86?
- A.
640K
- B.
2MB
- C.
4MB
- D.
8MB
- E.
16MB
Correct Answer
B. 2MBExplanation
2 MB is the amount of memory which is sufficient to run the basic X Window System environment. However, for more demanding graphical environments or applications, higher amounts of memory may be necessary.Rate this question:
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- 9.
You attempt to remove a directory, but Linux won't allow you, what is the most likely problem?
- A.
The directory name contains illegal characters
- B.
You are not logged in as root
- C.
The hard disk is full
- D.
The directory is not empty
- E.
None are likely problems
Correct Answer
D. The directory is not emptyExplanation
The most likely problem is that the directory is not empty. In Linux, you cannot remove a directory if it contains any files or subdirectories. You need to first remove all the contents within the directory before being able to remove the directory itself.Rate this question:
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- 10.
From a command prompt, what does the command "ls" do?
- A.
Lists the settings of the OS
- B.
Lists the contents of the directory
- C.
List command to list contents of files
- D.
Finnish words, means to direct a file to a port
- E.
None of the Above -------------------------------------------------------------------------------- None of the Above -------------------------------------------------------------------------------- None of the Above -------------------------------------------------------------------------------- None of the Above -------------------------------------------------------------------------------- None of the Above -------------------------------------------------------------------------------- None of the Above -------------------------------------------------------------------------------- None of the Above -------------------------------------------------------------------------------- None of the Above
Correct Answer
B. Lists the contents of the directoryExplanation
The command "ls" is used to list the contents of a directory from a command prompt. It displays the files and subdirectories present in the current working directory.Rate this question:
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- 11.
Which command creates a file system?
- A.
Fdisk
- B.
Crfs
- C.
Mkfs
- D.
Fs
Correct Answer
C. MkfsExplanation
The command "mkfs" is used to create a file system on a storage device. It is commonly used in Linux and Unix systems to format a partition or disk with a specific file system type, such as ext4 or NTFS. This command initializes the file system structures and metadata on the device, allowing it to be used for storing files and directories.Rate this question:
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- 12.
What is the default administrator username?
- A.
Administrator
- B.
Admin
- C.
Superuser
- D.
Root
- E.
Head
Correct Answer
D. RootExplanation
In Linux systems, the default administrator username is typically root. The root user has full administrative privileges, allowing them to control system settings, install software, and perform other critical tasks. Because of its powerful role, access to the root account should be managed carefully to maintain system security and prevent unauthorized changes. Other systems might use "admin" or similar, but "root" is the standard administrator account on new Linux installations.Rate this question:
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- 13.
Which of the following are valid Linux wildcards? (Choose all that apply)
- A.
* and ?
- B.
/
- C.
?
- D.
&
- E.
Z
Correct Answer
A. * and ?Explanation
The correct answer is "* and ?". In Linux, the asterisk (*) is a wildcard that represents any number of characters, while the question mark (?) represents a single character. These wildcards are commonly used in file and directory searches to match multiple filenames or patterns. The other options (/, ?, &, Z) are not valid Linux wildcards.Rate this question:
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- 14.
What does the command "ps" do?
- A.
Prints the directory
- B.
Shows what processes are running
- C.
Print status of LPT1
- D.
Produces system statistics
- E.
None of the above
Correct Answer
B. Shows what processes are runningExplanation
The command "ps" is used to display information about the currently running processes on a system. It provides details such as process ID, CPU usage, memory usage, and other relevant information. By executing the "ps" command, users can get an overview of the processes that are currently active and running on their system.Rate this question:
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- 15.
You are working in Linux when a program hits a flaw and stops running. Which command can be used to end the process?
- A.
Kill
- B.
Stop
- C.
End
- D.
Wait
- E.
CTL-ALT-DEL
Correct Answer
A. KillExplanation
The kill command in Linux can be used to terminate a process. It sends a signal to the specified process, causing it to stop running. This is a commonly used command to end a program that has encountered a flaw or is unresponsive.Rate this question:
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- 16.
A user is logged into the Linux workstation, what is the best way to login to root from a shell prompt?
- A.
Login root
- B.
Chuser root
- C.
Su
- D.
Root
Correct Answer
C. SuExplanation
The correct answer is "su". The "su" command stands for "switch user" and allows the user to switch to a different user account, in this case, the root user. By entering "su" followed by the root password, the user can gain root privileges and access the root account from the shell prompt. This is considered the best way to login to root as it provides a secure and controlled method of accessing the root account.Rate this question:
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- 17.
Linux allows filenames up to what number of characters?
- A.
8
- B.
11
- C.
256
- D.
512
- E.
Unlimited
Correct Answer
C. 256Explanation
Linux allows filenames up to 256 characters because it follows the POSIX standard, which specifies that the maximum length for a filename is 255 characters. This limitation is due to the way file systems are designed and the need to allocate space for storing the filename. Therefore, any filename in Linux that exceeds 256 characters will not be recognized or accessible.Rate this question:
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- 18.
T/F: The command "pwd" displays the directory
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The command "pwd" stands for "print working directory" and is used to display the current directory that the user is in. Therefore, the statement "The command 'pwd' displays the directory" is true.Rate this question:
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- 19.
T/F: To move files, use the "move" command.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The correct answer is False because to move files, you should use the "mv" command in most operating systems, including Unix-like systems. The "move" command is not a recognized command for moving files.Rate this question:
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- 20.
You forget the root password. You decide to reboot using a boot disk floppy. What do you need to do to recover the root password?
- A.
Mount the main partition, edit the /etc/passwd file to remove the root password, reboot.
- B.
Mount the root partition, edit the /etc/passwd file to remove the root password, reboot.
- C.
Mount the main partition, edit the /tmp/passwd file to remove the root password, reboot
- D.
None of the above
Correct Answer
B. Mount the root partition, edit the /etc/passwd file to remove the root password, reboot.Explanation
To recover the root password after forgetting it, you need to mount the root partition and then edit the /etc/passwd file to remove the root password. After making this change, you can reboot the system. This is the correct answer because the /etc/passwd file contains the user account information, including the encrypted passwords. By removing the root password from this file, the system will allow you to login as root without a password, effectively recovering the root access.Rate this question:
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Apr 21, 2024Quiz Edited by
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Apr 22, 2011Quiz Created by
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