SUSE SCA_SLES15 Exam Dumps

The programsystemdis the process with process ID 1. It is responsible for initializing the system in the required way.systemdis started directly by the kernel and resists signal9, which normally terminates processes. All other programs are either started directly by systemd or by one of its child processes.

The system initialization system used in SLES 15 is systemd. It is a modern and powerful system and service manager that replaces the traditional init system. It provides faster boot times, better dependency handling, parallelization, and more features and capabilities. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-systemd-basics.html

https://en.wikipedia.org/wiki/Virtual_Network_Computing#:~:text=VNC%20by%20default%20uses%20TCP,Java%2Denabled%20web%2Dbrowser.

VNC by default usesTCP port5900+N,[6][7]whereNis the display number (usually :0 for a physical display). Several implementations also start a basicHTTPserveron port 5800+Nto provide a VNC viewer as aJava applet, allowing easy connection through any Java-enabled web-browser. Different port assignments can be used as long as both client and server are configured accordingly. A HTML5 VNC client implementation for modern browsers (no plugins required) exists too.[8]

The default port a VNC Client uses to connect is TCP 5901. This port corresponds to the first display number (:1) of the VNC server. Each display number has its own port number, starting from 5900. For example, display :2 uses port 5902, display :3 uses port 5903, and so on. The user can specify a different port number if needed. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-vnc-connect.html

The valid device types are character and block devices. Character devices are devices that transfer data byte by byte, such as keyboards, mice, terminals, etc. Block devices are devices that transfer data in fixed-size blocks, such as disks, CD-ROMs, etc. Pipe, null, redirect, udev, and network are not device types but rather concepts or components related to devices or device management. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-devices.html

The file that lists each user's home directory and login shell is /etc/passwd. This file contains information about each user account on the system, such as user name, password (or an x if using shadow passwords), UID, GID, full name or comment field, home directory path, login shell path, etc. Each line in this file corresponds to one user account and has seven fields separated by colons. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-user-group.html#sec-user-group-files

If you want to define alias commands so that each time you open a terminal window those aliases are available from the command prompt, you should create a file named -/.alias and put your alias commands in that file. The -/.alias file is one of the files that are sourced by the bash shell when it starts. It can contain alias definitions and other customizations for your shell environment. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-bash.html#sec-bash-startup