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Home LPI 101-500

LPI 101-500 Exam Practice Questions (P. 3)

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Question #11
FILL BLANK -
Which command displays the current disk space usage for all mounted file systems? (Specify ONLY the command without any path or parameters.)

Correct Answer:
df
chatbot-img GPT-4o - Answer
The df command is essential for checking the disk space usage of all mounted filesystems. It presents an overview without requiring any additional parameters, making it quite straightforward to use for monitoring disk space efficiently. This command is particularly useful in managing system resources and ensuring that no file system reaches its capacity unexpectedly.

Question #12
Which chown command changes the ownership to dave and the group to staff on a file named data.txt?
  1. A
    chown dave/staff data.txt
  2. B
    chown -u dave -g staff data.txt
  3. C
    chown --user dave --group staff data.txt
  4. D
    chown dave+staff data.txt
  5. E
    chown dave:staff data.txt

Correct Answer:
E
chatbot-img GPT-4o - Answer
Absolutely, the format "chown USERNAME:GROUPNAME FILENAME" nails it. For setting both user and group ownership of a file in one sweep, this is your go-to syntax. It's concise and classically used in UNIX and Linux systems. So, for changing the ownership of 'data.txt' to user 'dave' and group 'staff', the command "chown dave:staff data.txt" is perfect. This follows the universal format making it efficient and error-free.

Question #13
When considering the use of hard links, what are valid reasons not to use hard links?
  1. A
    Hard links are not available on all Linux systems because traditional filesystems, such as ext4, do not support them
  2. B
    Each hard link has individual ownership, permissions and ACLs which can lead to unintended disclosure of file content
  3. C
    Hard links are specific to one filesystem and cannot point to files on another filesystem
  4. D
    If users other than root should be able to create hard links, suln has to be installed and configured
  5. E
    When a hard linked file is changed, a copy of the file is created and consumes additional space

Correct Answer:
C
chatbot-img GPT-4o - Answer
Hard links serve as direct pointers to the data on the disk, effectively allowing multiple filenames to point to the same file contents. However, an essential characteristic of hard links is their inability to cross filesystem boundaries—they must reside within the same filesystem as the original file. This limitation can be restrictive in environments where data needs to be linked across different storage volumes or devices, requiring alternatives like symbolic links for such purposes.

Question #14
In compliance with the FHS, in which of the directories are man pages found?
  1. A
    /opt/man/
  2. B
    /usr/doc/
  3. C
    /usr/share/man/
  4. D
    /var/pkg/man
  5. E
    /var/man/

Correct Answer:
C
chatbot-img GPT-4o - Answer
The correct directory for storing man pages as per the Filesystem Hierarchy Standard is /usr/share/man. The FHS specifies this location because it is intended for shared resources, which include man pages, widely used across various applications and users but remain architecture-independent. Hence, any documentation that fits this criterion should reside in /usr/share/man.

Question #15
FILL BLANK -
Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)

Correct Answer:
cmdline
chatbot-img GPT-4o - Answer
The correct file you're referring to is indeed 'cmdline'. This file resides in the /proc directory and includes all parameters passed to the kernel at boot time by the bootloader. Understanding this helps in diagnosing boot issues or optimizing system performance, as it reveals exactly what instructions the kernel was given at startup. Make sure to check it out if you're troubleshooting or just curious about your system's boot parameters.

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