FC0-U71 Applications and Software Practice Question
A developer wants to install a Linux application on a system that uses the Debian package manager. Which package format should the developer look for?
⚠ Common exam trap
FC0-U71 often tests package format-to-distribution mapping, so candidates confuse .rpm (Red Hat) with .deb (Debian) or pick .msi/.pkg by pattern-matching 'installer'.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
.deb
Debian-based Linux distributions (Debian, Ubuntu) use the dpkg package manager and .deb package format. A developer installing software on such a system should look for .deb packages, which can be installed with dpkg or apt.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
.deb
Why this is correct
The .deb format is the native package archive for Debian-based systems, installed via dpkg or apt. Since the stem specifies a system using the Debian package manager, .deb directly satisfies that constraint, unlike .rpm (Red Hat) or source tarballs, which require different tooling.
- ✗
.msi
Why it's wrong here
The .msi format is Microsoft Windows Installer, which Debian's dpkg cannot install. It is tempting because it is a familiar package format for desktop software, and it would be the right choice when deploying applications to Windows systems rather than Debian-based Linux distributions.
- ✗
.rpm
Why it's wrong here
The .rpm format belongs to RPM-based distributions such as RHEL and Fedora, not Debian's dpkg toolchain. It is tempting because it is a common Linux package format, and it would be correct when installing software on RPM-based systems rather than Debian or Ubuntu.
- ✗
.pkg
Why it's wrong here
Debian's package manager installs .deb archives, so a .pkg file cannot be processed by dpkg or apt. The .pkg format is tempting because it is a genuine package type, but it belongs to macOS Installer and Solaris pkgadd, not Debian-based Linux distributions.
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Same concept, more angles
2 more ways this is tested on FC0-U71
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A user wants to install software on a Linux system. Which file types are most commonly used for installing applications?
easy- A..dmg and .pkg
- B..app and .apk
- ✓ C..deb and .rpm
- D..exe and .msi
Why C: On Linux, the two dominant package formats are .deb (used by Debian, Ubuntu, and derivatives via dpkg/apt) and .rpm (used by Red Hat, Fedora, CentOS, and SUSE via rpm/dnf/yum). These are the standard installer file types for Linux distributions.
Variation 2. A user wants to install a software package on a Linux system using a package that ends in .deb. Which Linux distribution family is most likely being used?
easy- A.openSUSE
- B.Arch Linux
- ✓ C.Debian-based (e.g., Ubuntu)
- D.Red Hat Enterprise Linux
Why C: The .deb package format is native to Debian and its derivatives, including Ubuntu, Linux Mint, and Kali Linux. These distributions use the dpkg low-level package manager and APT (Advanced Package Tool) as the high-level front end for dependency resolution and repository management. Installing a .deb file is typically done with 'dpkg -i' or 'apt install ./package.deb'.
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.