SUSE Certified Administrator in SUSE Linux Enterprise Server 15 SCA_SLES15 Exam Practice Test

Answer : B, E, F

The bash commands that result in a valid arithmetic expansion are:

TOTAL=$[8/2]

TOTAL=$((5+2))

((TOTAL++))

Arithmetic expansion is a bash feature that allows you to perform integer calculations and assign or use the result in a command or expression. There are two syntaxes for arithmetic expansion: [expression]and((expression)). The expression can contain variables, operators, parentheses, etc. The ((expression)) syntax can also be used without the $ sign for assignments or conditional tests. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-bash.html#sec-bash-arithmetic

Answer : D

The command that you would use to set an Extended ACL so that the jsmith user has all permissions to just the tstparse.sh file in your scripts subdirectory under your home directory is setfacl -m u:jsmith:rwx ~/scripts/tstparse.sh. This command will modify (or create if it does not exist) the Extended ACL for the specified file and add an entry for the jsmith user with read, write, and execute permissions. You can use getfacl ~/scripts/tstparse.sh to view the Extended ACL for the file. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-acl.html#sec-acl-set

Answer : D

You have just added a new directory to be exported via NFS. To make that directory available, you should run systemctl restart nfsserver.service. This command will restart the NFS server service and reload the /etc/exports file that contains the export definitions. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-nfs-server.html#sec-nfs-server-export

Answer : B

The file that contains the list of DNS servers SLES will contact is /etc/resolv.conf. This file specifies one or more nameserver addresses that will be used to resolve hostnames to IP addresses. It may also contain other options such as search domains, sort lists, etc. The /etc/resolv.conf file can be generated automatically by network configuration tools or edited manually by the administrator. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-network-dns.html#sec-network-dns-resolv.conf

Answer : D

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

Answer : A, F

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. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-sw-cl.html#sec-rpm-commands

Answer : D

Save a File in Vim / Vi#

The command to save a file in Vim is:w.

To save the file without exiting the editor, switch back to normal mode by pressingEsc, type:wand hitEnter.

https://linuxize.com/post/how-to-save-file-in-vim-quit-editor/

The w command will save the current file without exiting Vim. It stands for write. The other commands are either invalid or will exit Vim after saving. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-vim.html#sec-vim-save