SUSE SCA_SLES15 Exam Practice Test Instant Access

Question 1

Which Vim command will save the current file without exiting?

Aq!

Bw-no-exit

Cwq!

Ew!

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

Question 2

You are working at a terminal window of a server at the office, but you want to continue this work by remotely accessing the terminal session from your home office. Which command will you need to use to accomplish this?

Ascreen

Bbg

C-tty-release

DCtrl-fa, r

Ebg -term disconnect

Answer : A

The screen command will allow you to create and manage multiple terminal sessions that can be detached and resumed later. You can use the screen command to start a new session, then detach it with Ctrl-a d, and reattach it from another location with screen -r. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-screen.html

Question 3

In the scripts subdirectory under your home directory there is a file named tstparse.sh. You want to set an Extended ACL so thejsmith user has all permissions to just this file. Which command will accomplish this?

Asetacl -a user:jsmith:rwx -/scripts/tstparse.sh

Bextacl -a user=jsmith:rwx -/scripts/tstparse.sh

Cmodacl user=jsmith:rwx -/scripts/tstparse.sh

Dsetfacl -m u:jsmith:rwx -/scripts/tstparse.sh

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

Question 4

Which commands and options will display the routing table? (Choose two)

Acat /etc/sysconfig/routes

Bip route show

Cip r s

Dshowroute -a

Eipconfig -rd

Answer : B, C

The ip route show or ip r s commands will display the routing table on a Linux system. The routing table contains information about how to reach different network destinations. The cat /etc/sysconfig/routes command will display the static routes configuration file, which may not reflect the current routing table. The other commands are either invalid or unrelated to routing. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-network-routing.html

Question 5

Which statement is true regarding VFS?

AVFS is a set of ANs designed for BtrFS to provide portability.

BVFS is a high-performance journaling file system format used by default by YaST and parted.

CVFS is an abstraction layer in the kernel that provides the same interface to applications and the user, regardless of which file system format is used.

DVFS is a translation layer to allow applications written for ext2 and ReiserFS to run on ext4 file systems.

EVFS is a translation layer to allow applications to run on mobile platforms.

Answer : C

The statement that is true regarding VFS is that VFS is an abstraction layer in the kernel that provides the same interface to applications and users regardless of which file system format is used. VFS stands for Virtual File System or Virtual File System Switch. It allows different types of file systems (such as ext4, xfs, nfs, etc.) to be accessed through a common set of system calls and functions. VFS also provides caching and buffering mechanisms to improve performance and reliability. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-vfs.html

Question 6

Which directory is traditionally used as a catch all to mount local and/or remote file systems?

A/mnt

B/etc

C/home

D/var

E/tmP

Answer : A

The /mnt directory is traditionally used as a catch all to mount local and/or remote file systems. It is a generic mount point for temporary mounts by the system administrator. It may contain subdirectories for different types of file systems or devices, such as /mnt/cdrom, /mnt/usb, /mnt/nfs, etc. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-storage-mounting.html#sec-storage-mounting-mnt

Question 7

What is the first file executed by a bash login shell?

A/etc/profile

B/etc/profi le.alias

C-/profile

D-/.alias

E/etc/bash

Answer : A

https://www.gnu.org/software/bash/manual/html_node/Bash-Startup-Files.html

When Bash is invoked as an interactive login shell, or as a non-interactive shell with the--loginoption, it first reads and executes commands from the file/etc/profile, if that file exists. After reading that file, it looks for~/.bash_profile,~/.bash_login, and~/.profile, in that order, and reads and executes commands from the first one that exists and is readable. The--noprofileoption may be used when the shell is started to inhibit this behavior.

The first file executed by a bash login shell is /etc/profile. This file sets global environment variables and aliases for all users. It may also source other files in /etc/profile.d/ directory. Reference: https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-bash.html#sec-bash-startup

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