One, multiple choice
1. The relationship between Linux and UNIX is (C): Linux is a UNIX-like operating system.
2.Linux is a (D) operating system. Multi-user, multi-task
2. Short answer questions
1. Main features of Linux system:
<1> Stability: Linux follows the architecture of the UNIX operating system, so it has the characteristics of innate maturity and stability, which is much better than windows.
<2> Security: Linux is designed for a multi-user environment, so a clear distinction is made between system files and user files. A single file has its own attributes, and users can only read and write their own files, as well as read and write files. Taking general system files, this design ensures the security of Linux, and if there is a problem with a user file, it will not damage the entire system.
<3> Convenience: Since the emergence of APT and YUM, when installing software in Linux, the user only needs to tell the installer what software to install, and the installer will download the software by itself and complete the installation automatically. It greatly improves the convenience for users to install software.
<4> Low resource consumption: The Linux kernel is small, can support a variety of electronic products, and consumes little resources.
2. The main distribution versions of Linux are:
Redhat、Debian、Ubuntu、Gentoo、FreeBSD、SUSE Linux、Mandriva、Slackware
The following link is written by another author of CSDN, which can be opened to learn more about Linux distributions.
3. Download the CD image file of Centos6.5
download link:
http://www.9553.com/soft/64140.htm