Test Your Knowledge About Linux Basics!

Linus Torvalds is the correct answer because he is widely recognized as the original developer of Linux. He created the Linux kernel while he was a college student in Finland. His development of Linux revolutionized the world of operating systems and laid the foundation for the open-source movement.

The "cd" command in Linux allows an admin to move around the directory structure. "cd" stands for "change directory" and it is used to navigate through different directories in the Linux file system. By using "cd" followed by the name of a directory, the admin can switch to that directory and access its contents. This command is essential for navigating and managing files and directories in Linux.

A dual-boot is when you have two different operating systems installed on the same computer and you can choose which one to use when you start up the computer. In this case, the question states that you want to keep the existing operating system (presumably referring to a non-Linux OS) and install Linux as well. Therefore, the correct answer is "dual-boot" as it accurately describes the situation of having two operating systems on one computer.

Systemd replaced the Linux command for mounting and automounting file systems, which used to be /etc/fstab and autofs.

The correct answer is "df -h". The "df" command in Linux is used to display the amount of disk space used and available on a file system. The "-h" option is used to display the output in a human-readable format, showing sizes in kilobytes, megabytes, or gigabytes. Therefore, "df -h" is the appropriate command to determine the amount of free space left on a mounted drive.

Ncat is the modern replacement for Telnet in Linux. It allows administrators to connect to a specific network port. Ncat provides additional features and security compared to Telnet, making it a preferred choice for remote administration and troubleshooting tasks. Dhclient is a DHCP client, Ethtool is used for querying and controlling network device driver settings, and ip is a versatile command-line tool for configuring network interfaces. However, none of these options serve as a replacement for Telnet in the same way that Ncat does.

The given options list various advantages of Linux when comparing it with other operating systems. Compatibility is not an advantage of Linux over other operating systems because Linux may not always be compatible with certain software or hardware configurations. However, the other options, such as quick bug fixes, flexibility, performance, and better security, are all advantages of Linux over other operating systems.

Debian is the correct answer because it is a non-commercial Linux distribution that is known for its stability and reliability. It is also one of the oldest and most widely used distributions, with a large community of developers and users. Debian is known for its strict adherence to free software principles and its commitment to open-source development. It provides a wide range of software packages and supports multiple architectures, making it suitable for a variety of use cases.

Crontab (cron table) is a Linux utility that allows administrators to schedule tasks to run automatically at specified intervals. It is used for setting up recurring jobs or scripts, such as system backups, updates, or maintenance tasks. It does not handle user identification, open file listings, or Linux kernel module status.

Cooperative Linux (coLinux) is the correct answer because it is a software that allows running the Windows and Linux kernels simultaneously on the same machine. It provides a cooperative environment where both operating systems can run in parallel, sharing resources and allowing for seamless integration between the two. Virtualbox and Vmware are virtualization software that can also run multiple operating systems, but they do not specifically enable running Windows and Linux kernels simultaneously. LAN (Local Area Network) is a networking term and is not related to running operating systems in parallel. Therefore, the correct answer is Cooperative Linux (coLinux).