Q1. - (Topic 2)
Which file used by XDM specifies the default wallpaper?
A. /etc/X11/xdm/Xsetup
B. /etc/X11/xdm.conf
C. /etc/X11/xdm/Defaults
D. /etc/X11/defaults.conf
Answer: A
Q2. CORRECT TEXT - (Topic 6)
With X11 forwarding in ssh, what environment variable is automatically set in the remote host shell that is not set when X11 forwarding is not enabled? (Specify only the environment variable without any additional commands or values.)
Answer: DISPLAY, $DISPLAY
Q3. - (Topic 5)
Which of the following IPv4 networks are reserved by IANA for private address assignment and private routing? (Choose THREE correct answers.)
A. 127.0.0.0/8
B. 10.0.0.0/8
C. 169.255.0.0/16
D. 172.16.0.0/12
E. 192.168.0.0/16
Answer: B,D,E
Q4. CORRECT TEXT - (Topic 4)
Which command is used to sync the hardware clock to the system clock? (Specify ONLY the command without any path or parameters.)
Answer: hwclock, /sbin/hwclock, /usr/sbin/hwclock
Q5. - (Topic 5)
What is true regarding a default route?
A. The default route is always used first. When the default route is not available more specific routes are tried.
B. When a default route is set, all other routes are disabled until the default route is deleted.
C. The default route is only used if there is not a more specific route to a destination host or network.
D. Without a default route, no network communication even in directly attached networks is possible.
Answer: C
Q6. CORRECT TEXT - (Topic 6)
Which file contains a set of services and hosts that will be allowed to connect to the server by going through a TCP Wrapper program such as tcpd? (Specify the full name of the file, including path.)https://lh3.googleusercontent.com/-5cd-clmKnbk/AAAAAAAAAAI/AAAAAAAAADM/-SXesH19Ido/s46-c-k-no/photo.jpg
Answer: /etc/hosts.allow
Q7. - (Topic 3)
Which of the following steps prevents a user from obtaining an interactive login session?
A. Run the command chsh -s /bin/false with the user name.
B. Set the UID for the user to 0.
C. Remove the user from the group staff.
D. Add the user to /etc/noaccess.
E. Create a .nologin file in the user's home directory.
Answer: A
Q8. - (Topic 4)
Which of the following parameters are used for journalctl to limit the time frame of the output? (Choose TWO correct answers.)
A. --from=
B. --since=
C. --until=
D. --upto=
E. --date=
Answer: B,C
Q9. CORRECT TEXT - (Topic 2)
Which command can be used to investigate the properties for a particular window in X by clicking that window? (Specify ONLY the command without any path or parameters.)
Answer: /usr/bin/xwininfo, xwininfo
Q10. CORRECT TEXT - (Topic 3)
Which file specifies the user accounts that can NOT submit jobs via at or batch? (Provide the full path and filename)
Answer: /etc/at.deny
Q11. - (Topic 1)
Which of the following words is used to restrict the records that are returned from a SELECT SQL query based on a supplied criteria for the values in the records?
A. CASE
B. FROM
C. WHERE
D. IF
Answer: C
Q12. - (Topic 3)
To prevent a specific user from scheduling tasks with at, what should the administrator do?
A. Add the specific user to /etc/at.allow file.
B. Add the specific user to [deny] section in the /etc/atd.conf file.
C. Add the specific user to /etc/at.deny file.
D. Add the specific user to nojobs group.
E. Run the following: atd --deny [user].
Answer: C
Q13. - (Topic 6)
When trying to unmount a device it is reported as being busy. Which of the following commands could be used to determine which process is causing this?
A. debug
B. lsof
C. nessus
D. strace
E. traceroute
Answer: B
Q14. CORRECT TEXT - (Topic 4)
After configuring printing on a Linux server, the administrator sends a test file to one of the printers and it fails to print. What command can be used to display the status of the printer's queue? (Specify ONLY the command without any path or parameters.)
Answer: lpq, /usr/bin/lpq, lpstat, /usr/bin/lpstat
Q15. CORRECT TEXT - (Topic 1)
By default, the contents of which directory will be copied to a new user's home directory when the account is created by passing the -m option to the useradd command? (Specify the full path to the directory.)
Answer: /etc/skel
Q16. - (Topic 5)
What of the following can be done by the command ifconfig? (Choose TWO correct answers.)
A. Set a network interface active or inactive.
B. Specify the kernel module to be used with a network interface.
C. Allow regular users to change the network configuration of a network interface.
D. Change the netmask used on a network interface.
E. Specify which network services are available on a network interface.
Answer: A,D
Q17. - (Topic 4)
Why is the correct configuration of a system's time zone important?
A. Because the conversion of Unix timestamps to local time relies on the time zone configuration.
B. Because the time zone is saved as part of the modification times of files and cannot be changed after a file is created.
C. Because the environment variables LANG and LC_MESSAGES are, by default, set according to the time zone.
D. Because NTP chooses servers nearby based on the configured time zone.
Answer: A