Which command is used to manage packages in openSUSE?

The command used to manage packages in openSUSE is 'zypper'. Zypper is an advanced command-line tool that is specifically designed for managing packages within the openSUSE distribution. It provides functionalities for installing, removing, and updating software packages, as well as managing repositories and querying the state of installed packages.

Zypper works effectively with the RPM package management system, which underlies the package format used by openSUSE. While it utilizes RPM, zypper offers additional features such as dependency resolution, which simplifies package management tasks by automatically determining and resolving package dependencies.

In contrast, the other options are commands associated with different Linux distributions. For instance, 'apt' is primarily used in Debian-based systems, such as Ubuntu, for package management. 'dnf' is the package manager used in Fedora and RHEL-based distributions, providing similar functionalities but geared towards those environments. 'rpm' is the low-level package management tool that manages RPM packages directly but does not handle dependencies in the same way that zypper does. Thus, while all these commands pertain to package management, only zypper is specifically tailored for openSUSE.