1. What is kernel?

Ans: The operating system's kernel, which controls hardware and software functions, is its essential component. In essence, it controls how memory and CPU time are used. It is an essential part of the operating system. The kernel serves as a link between software programs and hardware-level data processing carried out through system calls and inter-process communication.

2.Is Linux an operating system or a kernel?

Ans: Linux is not an operating system; it is merely a kernel. However, the term "Linux" is frequently used to refer to a whole operating system that comes with a shell (like bash) and command-line and/or graphical user interface (GUI) facilities for system control.

3.Is Linux Operating System Immune to Malware?

Ans: Linux is not immune to malware. Although it is less susceptible to malware than other operating systems, it is still possible to get malware on Linux. To protect your Linux system from malware, you should only install software from trusted sources, keep your software up to date, and use a firewall.