TestOut Linux Pro Practice Test 2025 – Complete Exam Prep Guide

The configuration file that contains network interface settings in a Linux system can vary depending on the distribution being used. In this case, the correct choice points to a specific file format used by many Red Hat-based distributions, including CentOS and Fedora. The file located at `/etc/sysconfig/network-scripts/ifcfg-ens0` is explicitly designed to hold the settings for the network interface named `ens0`.

This file typically includes essential configurations such as the interface's IP address, subnet mask, gateway, and other parameters that dictate how the interface should behave when the system is up and running. It provides a straightforward way for system administrators to manage network interfaces on these distributions.

In contrast, the file located at `/etc/network/interfaces` is primarily used in Debian-based systems, and while it also contains network interface settings, it does not apply universally to all Linux distributions. The `/etc/sysconfig/network` file is more focused on the overall network configuration and does not specify individual interfaces. Finally, `/etc/hosts` is used for hostname resolution and mapping IP addresses to hostnames rather than for configuring network interfaces directly.