LPIC-1 Linux Installation and Package Management Practice Test 3 — 15 Questions

Question 1

Which THREE are valid fields in a GRUB 2 configuration file (grub.cfg) generated by update-grub? (Choose three.)

Accepted Answer

set root. A is correct because 'set root' is a valid GRUB 2 command used in grub.cfg to specify the root device (e.g., 'set root=(hd0,msdos1)') from which GRUB loads kernel and initrd images. This directive is automatically generated by update-grub based on the system's partition layout.

Answer

password

Answer

chainloader

Question 2

Refer to the exhibit. Based on the dpkg output, what is the status of the 'ftp' package?

Accepted Answer

Removed but configuration files remain.. The 'dpkg' output shows 'rc' in the status field, which stands for 'removed' (the package has been deleted) but 'config-files' remain. This means the package was removed using 'dpkg --purge' or 'apt-get remove' without the '--purge' option, leaving behind configuration files in /etc.

Answer

Half-configured.

Answer

Installed and up-to-date.

Answer

Not installed at all.

Question 3

Refer to the exhibit. A new installation requires the root filesystem to be placed on LVM. Based on the current disk layout, which partition is most suitable for use as an LVM physical volume?

Accepted Answer

/dev/sda2. (/dev/sda2) is correct because it is the only partition with the Linux LVM system ID (8e) in the exhibit, which is required for a partition to be used as an LVM physical volume. The extended partition /dev/sda2 contains the logical drives, but the system ID 8e on /dev/sda2 itself indicates it is designated for LVM, making it suitable for pvcreate.

Answer

/dev/sda3

Answer

A new partition must be created.

Answer

/dev/sda1

Question 4

Refer to the exhibit. After modifying /etc/default/grub to enable serial console output, which command must be run to apply the changes to the GRUB configuration?

Accepted Answer

update-grub. The correct command is `update-grub` (or its equivalent `grub-mkconfig -o /boot/grub/grub.cfg`). After modifying `/etc/default/grub`, you must regenerate the GRUB configuration file (`grub.cfg`) to incorporate the new serial console settings. `update-grub` is a wrapper that runs `grub-mkconfig` and writes the output to the correct location, applying the changes.

Answer

grub-editenv

Answer

grub-install

Answer

grub-set-default

Question 5

A systems administrator downloads a .deb package file but it fails to install due to unmet dependencies. Which command sequence should be used to resolve the dependencies and complete the installation?

Accepted Answer

dpkg -i package.deb; apt-get install -f. When a .deb package fails to install due to unmet dependencies, `dpkg -i package.deb` installs the package but leaves dependencies unresolved. Running `apt-get install -f` (or `apt install -f`) then fixes broken dependencies by downloading and installing any missing packages from the configured repositories. This two-step sequence is the standard method for resolving dependency issues after a direct dpkg installation.

Answer

apt-get install -f

Answer

dpkg --configure -a

Answer

apt-get upgrade

Question 6

An administrator wants to prevent a specific package from being upgraded during routine system updates. Which command marks the package as held back?

Accepted Answer

apt-mark hold package. `apt-mark hold package` is the standard command in Debian-based systems to mark a package as held back, preventing it from being upgraded during `apt-get upgrade` or `apt upgrade`. This command modifies the package selection state in the dpkg database, ensuring the package version remains unchanged until explicitly unheld.

Answer

apt-get hold package

Answer

dpkg --hold package

Answer

echo 'package hold' | dpkg --set-selections

Question 7

A system has multiple APT repositories configured. The administrator needs to ensure that for a specific package, the version from a particular repository is always preferred over others, regardless of version number. Which configuration would achieve this?

Accepted Answer

Creating a file in /etc/apt/preferences.d/ with a high Pin-Priority for that package and origin. APT's pinning mechanism, configured via files in /etc/apt/preferences.d/, allows an administrator to assign a high Pin-Priority to a specific package from a particular origin (repository). This ensures that version is always preferred during dependency resolution and upgrades, overriding the default version comparison logic.

Answer

Editing /etc/apt/sources.list and setting the release in sources.list

Answer

Using apt-mark hold on the package after installing from desired repository

Answer

Adding the repository and using apt-get install -t release package

Question 8

A system administrator needs to remove a package called 'apache2' from a Red Hat Enterprise Linux system while leaving its configuration files intact. Which command accomplishes this?

Accepted Answer

rpm -e apache2. `rpm -e` (erase) removes the package but, by default, leaves configuration files (usually marked as %config in the RPM spec) intact on the filesystem. This behavior is specific to RPM: when erasing a package, RPM renames modified config files with a `.rpmsave` extension rather than deleting them, preserving administrator customizations.

Answer

yum erase apache2

Answer

yum remove apache2

Answer

rpm -F apache2

Question 9

A Yellowdog Updater Modified (YUM) transaction that included several package installations and upgrades completed successfully, but a recent change caused a service to break. The administrator wants to revert the entire transaction using its transaction ID. Which command should be used?

Accepted Answer

yum history undo 123. `yum history undo 123` reverts the specific transaction identified by ID 123, reversing all changes (installs, upgrades, removals) made in that transaction while preserving the current state of other packages. This is the intended command for rolling back a single transaction without affecting subsequent transactions.

Answer

yum history redo 123

Answer

yum remove <packages>

Answer

yum history rollback 123

Question 10

An openSUSE administrator needs to add a new repository from a URL and refresh the package cache. Which command sequence accomplishes this?

Accepted Answer

zypper addrepo url; zypper refresh. `zypper addrepo url` adds a new repository from the specified URL, and `zypper refresh` updates the package cache to include metadata from all configured repositories. This two-step sequence is the standard method in openSUSE for adding a remote repository and making its packages available for installation.

Answer

zypper install --repo url

Answer

zypper modifyrepo --add url

Answer

zypper repos --add url

Question 11

Which command lists all installed packages on a Debian-based system by querying the dpkg database?

Accepted Answer

dpkg --get-selections. `dpkg --get-selections` queries the dpkg database directly and outputs a list of all installed packages along with their installation state (e.g., 'install'). This command does not rely on remote repositories or cache files, making it a reliable method for listing installed packages on a Debian-based system.

Answer

apt-cache search .

Answer

dpkg -L

Answer

apt-show-versions

Question 12

A Red Hat system administrator suspects that the files belonging to the 'openssh-server' package have been modified since installation. Which command verifies the integrity of the installed package files?

Accepted Answer

rpm -V openssh-server. The `rpm -V` (verify) command checks the integrity of installed package files by comparing their current attributes (size, MD5 checksum, permissions, etc.) against the original metadata stored in the RPM database. This directly answers the question of whether files belonging to the 'openssh-server' package have been modified since installation.

Answer

rpm -K openssh-server

Answer

rpm -qa | grep openssh

Answer

rpm -q openssh-server

Question 13

When troubleshooting a problem with a Debian package installation, an administrator wants to see which version of a package would be installed from the configured repositories. Which command displays the candidate version?

Accepted Answer

apt-cache policy package. The `apt-cache policy package` command displays the package's priority, the installed version (if any), and the candidate version (the version that would be installed by default from the configured repositories). This makes it the correct tool for determining which version will be installed from the repositories.

Answer

dpkg -l package

Answer

apt-show-versions package

Answer

apt-get -s install package

Question 14

A Debian system has some partially installed packages due to a failed installation. Which TWO commands can help resolve the broken dependencies? (Choose exactly two.)

Accepted Answer

apt-get -f install. The `apt-get -f install` command (option A) is specifically designed to fix broken dependencies by attempting to correct a system with unsatisfied dependencies, often by installing missing packages or removing partially installed ones. The `dpkg --configure -a` command (option D) reconfigures any unpacked but not yet configured packages, which is a common state after a failed installation, and can resolve dependency issues by completing the configuration of partially installed packages.

Answer

apt-get dist-upgrade

Answer

apt-get upgrade

Answer

apt-get remove --purge

Question 15

An administrator needs to downgrade a package 'apache2' to a specific older version using APT. Which TWO commands can achieve this? (Choose exactly two.)

Accepted Answer

apt-get install apache2=2.2.22. The `apt-get install apache2=2.2.22` command explicitly specifies the exact version to install, which forces APT to downgrade the package to that version if a newer version is currently installed. APT handles version constraints by comparing version strings using the dpkg version comparison algorithm, allowing precise pinning to an older release.

Answer

apt-get upgrade apache2

Answer

apt-get --reinstall install apache2

Answer

apt-cache showpkg apache2