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User Interfaces and Desktops
- Accessibility – You should be able to present some knowledge of accessibility technologies. This includes assistive technology, themes, and settings.
- Graphical desktops – The test takers should have some knowledge related to popular protocols that are used to access remote desktop sessions. They should also know something about prominent Linux desktops;
- Install X11 and configure it – The applicants will be able to configure and install X11, understand the X11 architecture, display applications on remote X servers, and manage access to the X server;
NEW QUESTION # 25
You suspect that a gateway machine on your network has failed but you are unsure which machine. Which command will help locate the problem?
- A. netstat
- B. traceroute
- C. ps
- D. nslookup
- E. ifconfig
Answer: B
NEW QUESTION # 26
What is the purpose of a screen reader?
- A. It reads displayed text to accommodate the needs of blind or visually impaired people.
- B. It reads the parameters of the attached monitors and creates an appropriate X11 configuration.
- C. It manages virtual keyboards on touch screen displays.
- D. It manages and displays files that contain e-books.
- E. It displays lines and markers to help people use speed reading techniques.
Answer: A
Explanation:
Explanation
NEW QUESTION # 27
Which of the following commands can remove a user from a group?
- A. usergroups
- B. usermod
- C. passwd
- D. grouprm
- E. groupmod
Answer: B
NEW QUESTION # 28
If neither cron.allow nor cron.deny exist in /etc/, which of the following is true?
- A. The default settings of /etc/crond.conf define whether or not user specific crontabs are generally allowed or not.
- B. The cron daemon will refuse to start and report missing files in the system's logfile.
- C. When a user creates a user specific crontab the system administrator must approve it explicitly.
- D. Without additional configuration, all users may create user specific crontabs.
- E. Without additional configuration, only root may create user specific crontabs.
Answer: A
NEW QUESTION # 29
Which command, available with all MTAs, is used to list the contents of the MTA's mail queue? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
mailq, /usr/bin/mailq, sendmail -bp, /usr/sbin/sendmail -bp, /usr/lib/sendmail -bp, sendmail,
/usr/sbin/sendmail, /usr/lib/sendmail
NEW QUESTION # 30
Which option in the chrony configuration file changes the initial interval of polls to a NTP server in order to speed up the initial synchronization?
- A. fsync
- B. fast
- C. iburst
- D. quickstart
- E. flood
Answer: C
NEW QUESTION # 31
What is true regarding the file ~/.forward?
- A. When configured correctly, ~/.forward can be used to forward each incoming mail to more than one other recipient.
- B. As it is owned by the MTA and not writable by the user, it must be edited using the editaliases command.
- C. Using ~/.forward, root may configure any email address whereas all other users may configure only their own addresses.
- D. After editing ~/.forward the user must run newaliases to make the mail server aware of the changes.
Answer: A
NEW QUESTION # 32
Which file contains the data of the last change of a user's password?
- A. /var/log/shadow
- B. /etc/passwd
- C. /etc/pwdlog
- D. /etc/shadow
- E. /etc/gshadow
Answer: D
NEW QUESTION # 33
What is the purpose of the iconv command?
- A. It converts bitmap images from one format to another such as PNG to JPEG.
- B. It verifies that the root directory tree complies to all conventions from the Filesystem Hierarchy Standard (FHS).
- C. It converts files from one character encoding to another.
- D. It displays additional meta information from icon files ending in .ico.
- E. It changes the mode of an inode in the ext4 file system.
Answer: C
NEW QUESTION # 34
FILL BLANK
Which command is used to set the hostname of the local system? (Specify only the command without any path or parameters.)
Answer:
Explanation:
hostname
NEW QUESTION # 35
What output is produced by the following command sequence?
echo '1 2 3 4 5 6' | while read a b c; do
echo result $c $b $a;
done
- A. result: 3 2 1
- B. result: 1 2 3 4 5 6
- C. result: 6 5 4 3 2 1
- D. result: 3 4 5 6 2 1
- E. result: 6 5 4
Answer: D
NEW QUESTION # 36
Which of the following is the best way to list all defined shell variables?
- A. echo $ENV
- B. env
- C. set
- D. env -a
Answer: C
NEW QUESTION # 37
What is true regarding public and private SSH keys? (Choose two.)
- A. To allow remote logins, the user's private key must be copied to the remote server.
- B. For each user account, there is exactly one key pair that can be used to log into that account.
- C. The private key must never be revealed to anyone.
- D. Several different public keys may be generated for the same private key.
- E. To maintain the private key's confidentiality, the SSH key pair must be created by its owner.
Answer: C,E
NEW QUESTION # 38
FILL BLANK
What option to useradd creates a new user's home directory and provisions it with a set of standard files? (Specify only the option name without any values or parameters.)
Answer:
Explanation:
-D
NEW QUESTION # 39
Which of the following are syslog facilities? (Choose TWO correct answers.)
- A. postmaster
- B. local7
- C. remote
- D. mail
- E. advanced
Answer: B,D
NEW QUESTION # 40
Which command should be added to /etc/bash_profile to change the language of messages from an internationalised program to Portuguese (pt)? (Select TWO correct answers)
- A. export LANG="pt"
- B. export LC_MESSAGES="pt"
- C. export LANGUAGE="pt"
- D. export ALL_MESSAGES="pt"
- E. export MESSAGE="pt"
Answer: A,B
NEW QUESTION # 41
How can the existing environment variable FOOBAR be suppressed for the execution of the script./myscript only?
- A. env -i FOOBAR./myscript
- B. set -a FOOBAR="";./myscript
- C. env -u FOOBAR./myscript
- D. unset -v FOOBAR;./myscript
Answer: C
NEW QUESTION # 42
Which of the following commands display a list of jobs in the print queue? (Choose two.)
- A. lpq
- B. cups --list
- C. lpr -q
- D. lpstat
- E. lprm -l
Answer: A,D
NEW QUESTION # 43
How does the ping command work by default?
- A. It sends an ARP request to a remote host and waits to receive an ARP response in return.
- B. Is sends a broadcast packet to all hosts on the net and waits to receive, among others, a response from the target system.
- C. It sends a TCP SYN packet to a remote host and waits to receive an TCP ACK response in return.
- D. Is sends an ICMP Echo Request to a remote host and waits to receive an ICMP Echo Response in return.
- E. It sends a UDP packet to port 0 of the remote host and waits to receive a UDP error response in return.
Answer: D
NEW QUESTION # 44
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