What is the typical extension for a Debian package file?

The typical extension for a Debian package file is .deb. This extension signifies that the file contains a Debian package, which is a standard format for distributing and installing software on Debian-based systems, such as Ubuntu. Debian packages include metadata about the software, as well as the files necessary for installation. The .deb format allows users to easily install, upgrade, and manage software through package management tools like dpkg or apt.

The other options represent different file types associated with various package formats or compression methods. The .rpm extension indicates a Red Hat package, which is used in Red Hat-based distributions like Fedora. The .tar.gz extension is for compressed tarballs, commonly used for source code and files that need to be unpacked prior to installation. The .zip extension is typically used for compressed files, often on Windows systems. Each of these serve different purposes and are not directly relevant to Debian package management.