dnf Interview Questions and Answers¶
Introduction¶
These questions test whether you understand what dnf does, when to use it, and how to verify the result on Linux.
Beginner Questions¶
What does dnf do?
It installs, removes, updates, and queries packages on RHEL-style systems.
Show a basic command.
sudo dnf install httpd
Intermediate Questions¶
Name useful options.
install: install packages.remove: remove packages.history: show transaction history.
Show a common administrator command.
sudo dnf update
Scenario-Based Questions¶
How would you handle dnf install remove update?
sudo dnf install httpd
What would you verify afterward?
dnf list installed httpd
Expected output should look similar to:
Installed Packages
httpd.x86_64 2.4.57-11.el9 @appstream
Practical Task Questions¶
Practice in a lab by running a safe version of the command, explaining the target, and showing the verification output.
Quick Review¶
sudo dnf install httpd
sudo dnf update
dnf list installed httpd
Related Guides¶
Summary¶
A strong dnf answer includes the purpose, a correct example, a common mistake, and a verification command with output you can interpret.