The tool commonly used to manage btrfs file systems is btrfs-progs. These utilities provide various commands for managing and maintaining btrfs file systems, including creating, mounting, and checking file systems.

The primary use of the iptables -L command is to view the current rules in the iptables firewall. It shows a list of firewall rules and their details, allowing you to inspect how traffic is being filtered or forwarded on a Linux system.

Containers enable OS-level virtualization, allowing multiple isolated user-space instances to run on the same kernel. They share the host OS's kernel but have separate user spaces, making them lightweight and efficient. Docker and Kubernetes are popular container technologies.

To temporarily change SELinux mode and allow everything while logging violations, you would use the "Permissive" mode. In this mode, SELinux will log policy violations but won't enforce them, which helps troubleshoot and analyze any issues without blocking the application.

The correct command to grant temporary elevated privileges in Linux is sudo, which stands for "superuser do." The sudo command allows authorized users to execute a command as the superuser or another user, providing a level of access control.

The top command provides a bird's-eye view of the system's current resource usage, including CPU, RAM, and swap. It offers real-time monitoring of processes and their resource consumption.

Docker is a technology that allows you to package applications and their dependencies into containers. It's an excellent choice for deploying microservices, as it ensures that each service is encapsulated with its dependencies and configurations, making it highly reproducible and scalable.

In Bash scripting, the test command is used to test for file types and compare values. It is often used with conditional statements like if and elif to perform tests on files, strings, and other expressions. The test command is also equivalent to [ ] in Bash.

The primary purpose of the /home directory in Linux is to store user home directories. Each user on a Linux system typically has a subdirectory within /home where their personal files and settings are stored.

During the boot process, the BIOS/UEFI (Basic Input/Output System/Unified Extensible Firmware Interface) is responsible for loading the kernel into memory. The BIOS/UEFI is the firmware that initializes the hardware and starts the boot process. It locates the bootloader, which, in turn, loads the kernel into memory to start the operating system.