Explanation
The distribution's package repository is the preferred source for the installation of new applications in a Linux based operating system. A package repository is a collection of software packages that are maintained by the distribution and can be easily installed, updated, or removed using a package manager. Package repositories offer several advantages, such as:
* They ensure compatibility and stability with the system and other packages.
* They provide security updates and bug fixes for the packages.
* They reduce the risk of malware or corrupted files.
* They simplify the dependency management and configuration of the packages.
The other sources are not preferred because they may not offer these benefits and may cause problems with the system. The vendor's version management system, the vendor's website, or a CD-ROM disk may contain packages that are not compatible with the distribution or may conflict with other packages. A retail store may not have the latest or the most suitable packages for the system. References:
* Linux Essentials - Linux Professional Institute (LPI), section 1.3 Installing, Updating and Removing Software Packages
* LPI Linux Essentials Study Guide: Exam 010 v1.6, 3rd Edition, chapter 4 Working on the Command Line, section 4.2 Managing Software
* Table of Contents - Linux Professional Institute Certification Programs, section 1.3 Installing, Updating and Removing Software Packages