LPIC-1 Linux Installation and Package Management Practice Test 5 — 15 Questions

Question 1

A system administrator is troubleshooting a package dependency issue on a Debian system. Which three commands can be used to display dependency information for a package? (Choose three.)

Accepted Answer

`apt show curl`. `apt-cache depends` shows dependencies of a package. `apt show` displays package info including dependencies. `dpkg -s` shows package status including dependencies. `apt-get check` only verifies the system for broken dependencies, not for a specific package. `dpkg --info` shows info from a .deb file, not the installed database.

Answer

`dpkg --info curl.deb`

Answer

`apt-get check`

Question 2

Refer to the exhibit. The system administrator wants to determine which package provides the file /etc/passwd. Based on the output, which command would be most appropriate to find the package?

Accepted Answer

`dpkg -S /etc/passwd`. `dpkg -S /path` searches the installed packages for ownership of the file. `apt-file search` can also do this but is not installed by default. `dpkg -L` lists files in a package, not the reverse. `apt-cache show` shows package info, not file ownership.

Answer

`dpkg -L base-passwd`

Answer

`apt-file search /etc/passwd`

Answer

`apt-cache show /etc/passwd`

Question 3

Refer to the exhibit. An administrator is trying to install Google Chrome but receives a GPG error. Which command should be run to add the repository's GPG key?

Accepted Answer

`wget -qO- https://dl.google.com/linux/linux_signing_key.pub | sudo apt-key add -`. The correct method is to download the signing key from the repository's official source and add it using `apt-key add`. `apt-key adv` requires knowing the key ID, which is not provided. `gpg --import` without apt-key does not integrate with apt. `dpkg --add-key` is not a valid command.

Answer

`gpg --import https://dl.google.com/linux/linux_signing_key.pub`

Answer

`apt-key adv --keyserver keyserver.ubuntu.com --recv-keys <keyid>`

Answer

`dpkg --add-key google`

Question 4

Refer to the exhibit. An administrator wants to verify the integrity of the kernel-core package by checking its signature. Which command is used?

Accepted Answer

`rpm -K kernel-core`. `rpm -K` (or `rpm --checksig`) checks the GPG signature of the package. `rpm -V` verifies file integrity against the database, not signature. `rpm --verify` is same as -V. `rpm -q --changelog` shows changelog. `rpm -qa` lists all packages.

Answer

`rpm -qa kernel-core`

Answer

`rpm -q --changelog kernel-core`

Answer

`rpm -V kernel-core`

Question 5

A user downloaded a Debian package file named 'software.deb'. Which command should be used to install it?

Accepted Answer

dpkg -i software.deb. The dpkg command with -i option installs a .deb package. apt-get and apt are package management tools that work with repositories, not local .deb files directly (though 'apt install ./software.deb' works in newer versions, dpkg is the standard low-level tool). rpm is for Red Hat packages.

Answer

rpm -ivh software.deb

Answer

apt install software.deb

Answer

apt-get install software.deb

Question 6

An administrator added a new APT repository to sources.list. Which command must be run to make the system aware of the packages from that repository?

Accepted Answer

apt update. The 'apt update' (or 'apt-get update') command refreshes the package index. 'apt upgrade' and 'apt-get upgrade' upgrade installed packages. 'apt-cache' is used for querying the package cache.

Answer

apt-get upgrade

Answer

apt upgrade

Answer

apt-cache search

Question 7

A user compiling software from source successfully runs './configure' and 'make', but the resulting binaries are not in the PATH. Which command should be run to install them system-wide?

Accepted Answer

make install. The 'make install' command copies binaries to standard directories (e.g., /usr/local/bin). 'make' only compiles, 'make all' is default, 'make clean' removes temporary files.

Answer

make

Answer

make all

Answer

make clean

Question 8

During boot, a server loads the wrong kernel. Which file should the administrator modify to change the default kernel in a standard GRUB 2 configuration?

Accepted Answer

/etc/default/grub. The file /etc/default/grub contains the GRUB_DEFAULT variable to set the default menu entry. /boot/grub/grub.cfg is generated automatically and should not be edited manually. /etc/grub.d/ contains scripts that generate the config. /boot/grub/grub.conf is for GRUB 1.

Answer

/boot/grub/grub.conf

Answer

/etc/grub.d/

Answer

/boot/grub/grub.cfg

Question 9

After a failed package upgrade, a Debian system shows 'unmet dependencies' when trying to install any new software. What is the most appropriate command to fix this condition?

Accepted Answer

apt-get install -f. apt-get install -f (or apt install -f) attempts to correct broken dependencies. Using dpkg --force-depends bypasses dependency checks but can leave the system in an inconsistent state. Removing all packages is too drastic. Editing dpkg status file manually is error-prone and not recommended.

Answer

Edit /var/lib/dpkg/status manually

Answer

dpkg --purge $(dpkg -l | grep ^iU | awk '{print $2}')

Answer

dpkg --force-depends -i *.deb

Question 10

An RPM-based system has a package 'example-1.0' installed, but a newer version 'example-2.0' is available in a repository. Which command will upgrade the package?

Accepted Answer

yum update example. Option B is correct because 'yum update example' is the standard command to upgrade a specific package to the latest available version from configured repositories. YUM automatically resolves dependencies and retrieves the newer package from the repository, making it the appropriate tool for upgrading from a repository source.

Answer

rpm -Uvh example-2.0.rpm

Answer

yum check-update example

Answer

yum install example

Question 11

Which TWO commands are used to manage Debian packages? (Choose two.)

Accepted Answer

apt-get. dpkg is the low-level Debian package manager, and apt-get (or apt) is the higher-level tool. rpm and yum are for Red Hat-based systems. zypper is for SUSE.

Answer

zypper

Answer

yum

Answer

rpm

Question 12

Which TWO directories are commonly used to store source code before compiling? (Choose two.)

Accepted Answer

/usr/src. /usr/src is the traditional location for kernel source and other source packages. /usr/local/src is for locally compiled software. /opt is for optional add-on software binaries, not source. /tmp is temporary and not for permanent source code. /var/src is not standard.

Answer

/tmp

Answer

/var/src

Answer

/opt

Question 13

Which THREE locations are used to configure package repositories on a typical Linux system? (Choose three.)

Accepted Answer

/etc/zypp/repos.d/. /etc/apt/sources.list is for APT (Debian/Ubuntu). /etc/yum.repos.d/ is a directory for YUM/DNF repository files (Red Hat). /etc/zypp/repos.d/ is for Zypper (SUSE). /etc/apt.conf.d/ is for APT configuration, not repositories. /etc/pacman.d/ is for Arch Linux (not in LPIC scope).

Answer

/etc/apt.conf.d/

Answer

/etc/pacman.d/

Question 14

You are the system administrator of a small office network. The company has a Debian-based server that runs a critical database application. The database package was installed from the official Debian repository. After an ‘apt upgrade’, the database service fails to start. The error log indicates a library version mismatch. You suspect the upgrade updated a shared library that the database depends on, but the database binary was not updated because the repository no longer supports it. The vendor provides a custom .deb package for the database on their website. You need to restore the database functionality as quickly as possible, but you also want to avoid breaking other packages that may depend on the newer library. What should you do?

Accepted Answer

Download the vendor's .deb package and install it using 'dpkg -i' after removing the old database package.. Option B is correct: Reinstall the database using the vendor's .deb package, as it was designed for the current library versions. Option A is wrong because downgrading the library could break other packages that depend on the newer version. Option C is wrong because forcing an older library version without--no-deps still affects the system. Option D is wrong because reverting the entire system is overly drastic and may cause data loss.

Answer

Restore the entire system from a backup taken before the upgrade.

Answer

Downgrade the library to the previous version using 'apt-get install ='.

Answer

Use 'dpkg --force-depends -i' to force installation of the old database binary against the new library.

Question 15

You work for a hosting company that manages hundreds of CentOS 7 servers. Each server runs a standard set of monitoring tools. Your team needs to deploy a custom monitoring agent that is only available as source code (tarball). The agent must be installed on all servers from a central repository. You have set up an internal YUM repository with the compiled RPMs of the agent. On a test server, you run 'yum install custom-agent', but it fails with a message that the package is not found. You verify the package is present in the repository directory and that the createrepo command has been run. Which step is most likely missing?

Accepted Answer

The repository is not being served via HTTP or FTP; it is only available as a local file path.. The repository metadata must be available via HTTP or FTP. Option B is the common cause: the repository is not served by a web server. Option A is irrelevant because repo files are independent of hostname. Option C is not needed if the repo is local to the server. Option D could be a secondary issue but the primary is serving.

Answer

The GPG key for the repository is not imported.

Answer

The package architecture does not match (e.g., x86_64 package on i386).

Answer

The .repo file references the wrong baseurl hostname.