RHCSA Software Package Management Flashcards

You want to download an RPM package without installing it. Which command accomplishes this?

Answer: dnf download

'dnf download ' downloads the RPM to the current directory without installing it; the plugin is included by default in RHEL 8+.

Which command shows the list of all DNF modules available in configured repositories?

Answer: dnf module list

'dnf module list' displays all available modules with their streams, profiles, and current status.

What is a DNF module 'profile'?

Answer: A predefined set of packages within a module stream for a specific use case

A module profile is a curated list of packages from a stream optimized for a role (e.g., 'minimal', 'server', 'client') that can be installed together.

An RPM package fails to install because it conflicts with an already-installed package. What flag forces the installation anyway (for testing only)?

Answer: rpm -ivh --force

'rpm --force' overrides file conflicts and other non-fatal errors; --nodeps skips dependency checks, --replacefiles is not a valid rpm flag.

Where does DNF store downloaded package metadata and cached RPMs by default?

Answer: /var/cache/dnf/

DNF caches repository metadata and optionally downloaded packages in /var/cache/dnf/ organized by repository ID.

Which command installs the 'development' profile of the 'nodejs' module stream '18'?

Answer: dnf module install nodejs:18/development

DNF module install uses the syntax 'module:stream/profile' to specify exactly which stream and profile to install.

What command would you use to find which package installed the binary /usr/sbin/firewalld on a running system?

Answer: rpm -qf /usr/sbin/firewalld

'rpm -qf ' queries the RPM database to identify which installed package owns a specific file already on the system.