LPIC-1 Linux Installation and Package Management Practice Test 6 — 15 Questions

Question 1

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 -`. It downloads the Google Linux signing key from the official URL and pipes it directly into `apt-key add`, which imports the key into APT's trusted keyring. This resolves the GPG error by allowing APT to verify the authenticity of packages from the Google Chrome repository.

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 2

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`) is the command used to verify the GPG signature of an RPM package, ensuring its integrity and authenticity. This checks the package's cryptographic signature against the imported GPG key, confirming it has not been tampered with.

Answer

`rpm -qa kernel-core`

Answer

`rpm -q --changelog kernel-core`

Answer

`rpm -V kernel-core`

Question 3

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 correct command is `dpkg -i software.deb` because `dpkg` is the low-level package manager for Debian-based systems that directly installs `.deb` files. The `-i` flag tells `dpkg` to install the specified package file from the local filesystem, which is exactly what is needed when you have a downloaded `.deb` file.

Answer

rpm -ivh software.deb

Answer

apt install software.deb

Answer

apt-get install software.deb

Question 4

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. After adding a new APT repository to sources.list, you must run 'apt update' (or 'apt-get update') to refresh the local package index from all configured repositories. This command downloads the latest package lists from the repository's Release and Packages files, making the system aware of available packages and their versions. Without this step, APT will not know about the new repository's packages, and subsequent install or upgrade commands will fail to find them.

Answer

apt-get upgrade

Answer

apt upgrade

Answer

apt-cache search

Question 5

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. After './configure' and 'make' compile the source code, the binaries are built but remain in the local build directory. The 'make install' target copies the compiled binaries, libraries, and configuration files to their system-wide destinations (typically /usr/local/bin, /usr/local/lib, etc.) as defined by the Makefile's install prefix. Without running 'make install', the binaries exist only in the source tree and are not accessible via PATH.

Answer

make

Answer

make all

Answer

make clean

Question 6

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. In a standard GRUB 2 configuration, the default kernel is selected by setting the GRUB_DEFAULT variable in /etc/default/grub. After modifying this file, the administrator must run update-grub (or grub-mkconfig) to regenerate the /boot/grub/grub.cfg file, which is the actual configuration read by the bootloader. This two-step process separates user-facing settings from the bootloader's runtime configuration.

Answer

/boot/grub/grub.conf

Answer

/etc/grub.d/

Answer

/boot/grub/grub.cfg

Question 7

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. The 'apt-get install -f' command (option B) is the correct fix because it invokes the '--fix-broken' option, which automatically resolves unmet dependencies by either installing missing packages or removing partially installed ones. This is the standard Debian/APT tool for repairing a broken package state after a failed upgrade, as it reads the dpkg database and corrects inconsistencies without manual intervention.

Answer

Edit /var/lib/dpkg/status manually

Answer

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

Answer

dpkg --force-depends -i *.deb

Question 8

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. '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 9

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

Accepted Answer

apt-get. apt-get is the primary command-line tool for handling Debian packages, handling dependency resolution and retrieval from repositories. dpkg is the low-level tool that directly installs, removes, and queries .deb package files without automatic dependency management. Both are essential for Debian-based package management.

Answer

zypper

Answer

yum

Answer

rpm

Question 10

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

Accepted Answer

/usr/src. In Linux, source code for compiling software is conventionally stored in /usr/src (for kernel sources or distribution-provided source packages) and /usr/local/src (for locally compiled software not managed by the package manager). These directories follow the Filesystem Hierarchy Standard (FHS), which designates /usr/src for system-wide source and /usr/local/src for locally installed source code.

Answer

/tmp

Answer

/var/src

Answer

/opt

Question 11

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

Accepted Answer

/etc/zypp/repos.d/. /etc/zypp/repos.d/ is the directory where SUSE's Zypper package manager stores repository configuration files (each .repo file defines a repository's URL, GPG keys, and other settings). This is the standard location for configuring repositories on openSUSE and SUSE Linux Enterprise systems.

Answer

/etc/apt.conf.d/

Answer

/etc/pacman.d/

Question 12

You are a junior administrator for a company that uses a standard disk image for all Linux servers. The image is based on CentOS 7. You need to ensure that new servers automatically install all available security updates during the first boot. You plan to run a command in a startup script. Which command should you use?

Accepted Answer

yum update -y. `yum update -y` installs all available updates, including security updates, without prompting for confirmation. On CentOS 7, this command updates all packages to their latest versions, which encompasses security patches. Running this in a startup script ensures that security updates are applied automatically on first boot.

Answer

yum check-update

Answer

yum install yum-cron

Answer

apt-get upgrade -y

Question 13

Which TWO of the following are Debian package management tools?

Accepted Answer

dpkg. Option B, dpkg, is correct because it is the low-level Debian package manager that installs, removes, and queries .deb packages on Debian-based systems. Option D, apt, is correct because it is the high-level Debian package management front end that resolves dependencies and works with repositories, typically invoking dpkg underneath. The unmarked options do not belong: yum (A) and rpm (C) are Red Hat–family tools for RPM-based distributions, and zypper (E) is the package manager for SUSE/openSUSE, not Debian.

Answer

yum

Answer

rpm

Answer

zypper

Question 14

A junior administrator needs to install the package 'nginx' on an Ubuntu 22.04 server. They want to ensure all required dependencies are automatically resolved and installed. Which command should they use?

Accepted Answer

apt-get install nginx. The correct answer is apt-get install nginx. On Ubuntu, apt-get is the high-level package manager that downloads packages from repositories and resolves dependencies automatically. It ensures nginx and all required libraries are installed and configured properly.

Answer

dpkg -i nginx

Answer

yum install nginx

Answer

rpm -ivh nginx

Question 15

A junior administrator needs to install the package 'nginx' on an Ubuntu 22.04 server. They download the nginx_1.18.0-6ubuntu14.4_amd64.deb file from a vendor website and run the command 'dpkg -i nginx_1.18.0-6ubuntu14.4_amd64.deb'. The installation fails with an error stating that the package depends on 'libnginx-mod-http-image-filter'. Which command should the administrator run next to resolve the missing dependency?

Accepted Answer

apt-get install -f. When dpkg fails to install a .deb file because of unmet dependencies, the package remains unconfigured and the system package database becomes inconsistent. The recommended fix is to run 'apt-get install -f', which instructs APT to resolve broken dependencies by downloading and installing required packages from the repositories. This restores system consistency and completes the installation.

Answer

dpkg -i --force-depends nginx_1.18.0-6ubuntu14.4_amd64.deb

Answer

apt-get update

Answer

dpkg --configure -a