NEW QUESTION 1

Which of the following commands can be used to limit the amount of memory a user may use?

• A. umask
• B. usermod
• C. ulimit
• D. passwd
• E. chage

Answer: C

NEW QUESTION 2

Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table orders?

• A. SELECT order_type,COUNT(*) FROM orders WHERE order_type=order_type;
• B. SELECT order_type,COUNT(*) FROM orders GROUP BY order_type;
• C. COUNT(SELECT order_type FROM orders);
• D. SELECT COUNT(*) FROM orders ORDER BY order_type;
• E. SELECT AUTO_COUNT FROM orders COUNT order_type;

Answer: B

NEW QUESTION 3

Which of the following commands can be used to display the local routing table? (Choose TWO correct answers.)

• A. ifconfig
• B. dig
• C. netstat
• D. route
• E. trackroute

Answer: CD

NEW QUESTION 4

Which of the following commands will help identify a broken router between the local and the remote machine?

• A. ps
• B. netstat
• C. nslookup
• D. ifconfig
• E. traceroute

Answer: E

NEW QUESTION 5

Why is the xhost program considered dangerous to use?

• A. It makes it difficult to uniquely identify a computer on the network.
• B. It allows easy access to your X server by other users.
• C. It logs sensitive information to syslog.
• D. It makes your computer share network resources without any authentication.
• E. It is a graphical DNS tool with known exploits.

Answer: B

NEW QUESTION 6

What is the purpose of the Sticky Keys feature in X?

• A. To assist users who have difficulty holding down multiple keys at once
• B. To prevent repeated input of a single character if the key is held down
• C. To ignore brief keystrokes according to a specified time limit
• D. To repeat the input of a single character

Answer: A

NEW QUESTION 7

What is the name of the simple graphical login manager that comes with a vanilla X11 installation? (Specify ONLY the command without any path or parameters.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
xdm

NEW QUESTION 8

Which commands can you use to change a user's account aging information? (Choose THREE correct answers.)

• A. usermod
• B. passwd
• C. chattr
• D. chage
• E. chsh

Answer: ABD

NEW QUESTION 9

Which environment variable should be set in order to change the time zone for the commands run from within the environment variable's scope? (Specify the variable name only.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
TZ

NEW QUESTION 10

Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.)

• A. ~/.bashconf
• B. ~/.bashrc
• C. ~/.bashdefaults
• D. ~/.bash_etc
• E. ~/.bash_profile

Answer: BE

NEW QUESTION 11

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/s4

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
/etc/hosts.allow

NEW QUESTION 12

Which of the following SQL statements will select the fields name and address from the contacts table?

• A. SELECT (name, address) FROM contacts;
• B. SELECT (name address) FROM contacts;
• C. SELECT name, address FROM contacts;
• D. SELECT name address FROM contacts;

Answer: C

NEW QUESTION 13

On a regular users workstation the route command takes a long time before printing out the routing table. Which of the following errors does that indicate?

• A. The local routing information may be corrupted and must be re-validated using a routing protocol.
• B. One of the routers in the routing table is not available which causes the automatic router failure detection mechanism (ARF-D) to wait for a timeout.
• C. There may accidentally be more than one default router in which case a default router election has to be done on the network in order to choose one router as the default.
• D. DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout.

Answer: D

NEW QUESTION 14

Which crontab entry could be used to set the system time at regular intervals?

• A. 1 0 * * * date $d $t $24
• B. 1 0 * * * ntpdate ntp1.digex.net
• C. 1 0 * * * date ntp1.digex.net
• D. 1 0 * * * runcron date ntp1.digex.net
• E. 1 0 * * * settime $d $t $24

Answer: B

NEW QUESTION 15

Which TWO statements about crontab are true?

• A. Every user may have their own crontab.
• B. Changing a crontab requires a reload/restart of the cron daemon.
• C. The cron daemon reloads crontab files automatically when necessary.
• D. hourly is the same as "0 * * * *".
• E. A cron daemon must run for each existing crontab.

Answer: AC

NEW QUESTION 16

In which file, if present, must all users be listed that are allowed to use the cron scheduling system? (Specify the full name of the file, including path.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
/etc/cron.allow

NEW QUESTION 17

Which of the following is true about IPv6?

• A. With IPv6, the TCP port numbers of most services have changed.
• B. IPv6 no longer supports broadcast addresses.
• C. IPv4 addresses can be used without any change with IPv6.
• D. IPv6 no longer supports multicast addresses.
• E. For IPv6, UDP and TCP have been replaced by the Rapid Transmission Protocol RTP.

Answer: B

NEW QUESTION 18

Which of the following tools used for DNS debugging, reports not only the response from the name server but also details about the query?

• A. dnsq
• B. dig
• C. hostname
• D. dnslookup
• E. zoneinfo

Answer: B

NEW QUESTION 19

Which of the following fields can be found in the /etc/group file? (Choose THREE correct answers.)

• A. The list of users that belong to the group.
• B. The home directory of the group.
• C. The name of the group.
• D. The description of the group.
• E. The password of the group.

Answer: ACE

NEW QUESTION 20

Which port is the default server port for the HTTPS protocol? (Specify the port number using digits.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
443

NEW QUESTION 21

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

NEW QUESTION 22
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