SCA_SLES15 Exam Questions & Answers

Subvolumes in BtrFS are like virtual filesystems that can be mounted separately with the -o subvol= option. They can also have different attributes and quotas. Subvolumes do not have to start with ''@'' character, although some default subvolumes use this convention. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-btrfs.html#sec-btrfs-subvolumes

The command that you would run to create an updated initial file system, if your server hardware requires additional drivers to be available for the kernel at boot up, is mkinitrd. This command will create or update the initrd file in /boot based on the current kernel and configuration files. The initrd file is an initial ramdisk image that contains the necessary drivers and tools to mount the root file system and start the boot process. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-boot-initrd.html

The execute permission on a directory means you can use the cd command to change into the directory. It also means you can access the files and subdirectories inside the directory, if you have read permission on them. The execute permission does not affect the visibility or exportability of the directory. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-file-permissions.html

The commands that could be used to determine the proper syntax for the cp command are man cp, cp --help, and info cp. These commands will display the manual page, help message, or info page for the cp command, respectively. They will provide information about the usage, options, arguments, examples, and other details of the cp command. The other commands are either invalid or unrelated to cp. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-cli-help.html

If you have a service named tftp, the command and options that would enable tftp to start automatically when the server starts are systemctl enable tftp. This command will create symbolic links in the appropriate systemd target directories to enable the tftp service unit. To start the service immediately, you can also use systemctl start tftp or systemctl enable --now tftp. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-systemd-services.html#sec-systemd-enable