Q1. - (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
Q2. - (Topic 1)
How can the existing environment variable FOOBAR be suppressed for the execution of the script./myscript only?
A. unset -v FOOBAR;./myscript
B. set -a FOOBAR="";./myscript
C. env -u FOOBAR./myscript
D. env -i FOOBAR./myscript
Answer: C
Q3. CORRECT TEXT - (Topic 3)
The system's timezone may be set by linking /etc/localtime to an appropriate file in which directory? (Provide the full path to the directory, without any country information)
Answer: /usr/share/zoneinfo/
Q4. - (Topic 6)
Which of the following programs uses the hosts.allow file to perform its main task of checking for access control restrictions to system services?
A. tcpd
B. inetd
C. fingerd
D. mountd
E. xinetd
Answer: A
Q5. - (Topic 5)
Which of the following statements is valid in the file /etc/nsswitch.conf?
A. multi on
B. 192.168.168.4 dns-server
C. hosts: files dns
D. include /etc/nsswitch.d/
Answer: C
Q6. - (Topic 2)
Which of the following commands shows the current color depth of the X Server?
A. xcd
B. xcdepth
C. xwininfo
D. xcolordepth
E. cat /etc/X11
Answer: C
Q7. - (Topic 6)
Which configuration file would be edited to change the default options for outbound SSH
sessions?
A. /etc/ssh/sshd_config
B. /etc/ssh/ssh
C. /etc/ssh/client
D. /etc/ssh/ssh_config
E. /etc/ssh/ssh_client
Answer: D
Q8. CORRECT TEXT - (Topic 4)
Please specify the top directory containing the configuration files for the CUPS printing system. (Specify the full path to the directory.)
Answer: /etc/cups, /etc/cups/
Q9. - (Topic 6)
Which of the following commands preloads and manages keys that are used for automatic authentication while logging in to other machines using SSH?
A. sshd
B. ssh-agent
C. ssh-keygen
D. ssh-add
Answer: B
Q10. - (Topic 3)
Which of the following commands should be added to /etc/bash_profile in order to change the language of messages for an internationalized program to Portuguese (pt)?
A. export LANGUAGE="pt"
B. export MESSAGE="pt"
C. export UI_MESSAGES="pt"
D. export LC_MESSAGES="pt"
E. export ALL_MESSAGES="pt"
Answer: D