Pass the SUSE Certified Administrator in Enterprise Linux 15 sca_sles15 Questions and answers with ValidTests

The scripts in the /etc/grub.d directory are used to generate the /boot/grub2/grub.cfg file and are taken as input by the grub2-mkconfig command. The /boot/grub2/grub.cfg file contains the menu entries and settings for the GRUB2 boot loader. The grub2-mkconfig command is used to create or update this file based on the scripts in /etc/grub.d and other configuration files. The scripts in /etc/grub.d are executed in numerical order and can be customized by the user or administrator. References:https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-grub2-config.html#sec-grub2-config-files

The -U option will install a package whether or not a previous version of the package is already installed. If a previous version exists, it will be upgraded. The -F option will install a package only if a previous version of the package is already installed. It will not install a new package.References:https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-sw-cl.html#sec-rpm-commands

The commands that can display the groups of which a user is a member are groups and id. The groups command will print the names of all primary and secondary groups that a user belongs to. If no user name is specified, it will print the groups for the current user. The id command will print various information about a user’s identity, such as user ID (UID), group ID (GID), primary group name, secondary group names, etc. References:https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-user-group.html#sec-user-group-display

The two commands that are commonly used to compile and install from source code are ./configure and make install. The ./configure command will check the system for dependencies, set variables, and generate a Makefile. The make install command will use the Makefile to compile the source code and copy the binaries and files to the appropriate locations. References:https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-software-install-source.html

The /etc/fstab file contains information about file systems that need to be mounted at boot time or on demand. It specifies the device name, mount point, file system type, mount options, dump frequency, and fsck order for each file system. References:https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-storage-mounting.html#sec-storage-mounting-fstab

The command that will take a foreground process and suspend it, and then place it in the background as a stopped job is Ctrl+Z. This keyboard shortcut will send a SIGTSTP signal to the foreground process group, which will stop its execution and return control to the shell. The shell will then display the job number and status of the stopped process. To resume the process in the background, you can use the bg command with the job number or % sign. References:https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-cli-jobs.html

You can view manual pages by running the man command followed by a specific command name. If the man command is not installed on your system, install it by runningzypper install man.

https://documentation.suse.com/sles/15-GA/html/SLES-all/pre-sle.html

The command that is used to view the manual pages is man. The man command will display the formatted documentation for a given command, function, or file. The manual pages are organized into sections based on their type and purpose. The user can specify the section number and the name of the item to view its manual page. References:https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-cli-help.html#sec-cli-help-man

If the file1.txt file already exists in your home directory, the touch -7file1.txt command will change the access and modification times of the existing file1.txt file. The touch command can be used to create new empty files or update the timestamps of existing files. The -7 option specifies that only one timestamp should be changed instead of both. References:https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-cli-touch.html

The basic components of RPM are RPM Database and RPM Package Manager. The RPM Database is a collection of files that store information about installed packages on the system. It is located in /var/lib/rpm by default. The RPM Package Manager is a set of tools and libraries that allow you to install, uninstall, query, verify, and manage RPM packages. It includes commands such as rpm, zypper, yast2, etc. References:https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-rpm.html#sec-rpm-components

The command that is used to manage software RAID is mdadm. This command can be used to create, assemble, monitor, and manage multiple device (md) arrays that provide RAID functionality. It can also be used to query and modify various parameters and settings of md arrays. References:https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-raid.html#sec-raid-mdadm