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ECCouncil
E-Commerce Architect
212-77
Linux Security Questions and Answers

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Questions # 1:

Which of the following types of information is returned by typing ifconfig eth0?

(Choose two)

Options:

The names of programs that are using eth0

The IP address assigned to eth0

The hardware address of eth0

The hostname associated with eth0

Answer

B, D

Questions # 2:

One of your colleagues is showing you the output from a protocol analyzer, which can detect the types of messages that are being transmitted over a network. The protocol analyzer shows a large number of ping commands being sent to your Web server. Others on the Internet are having trouble accessing your Web server. What kind of problem are you having?

Options:

Someone is using your Web site to test their connectivity to the Internet.

Someone is using a DoS attack on your Web site.

There is no problem; this is normal traffic from DNS servers and Internet routers checking connectivity to your Web site.

There is insufficient capacity on the Internet connection to your Web site.

Answer

Questions # 3:

Which of the following commands configures the laura account to expire on

January 1, 2005?

Options:

chage -E 2005/01/01 laura

usermod -e 2005 laura

usermod -e 2005-01-01 laura

chage -I 2005-01-01 laura

Answer

Questions # 4:

Which of the following configuration options for kernel enable you to effectively make your computer a router?

Options:

CONFIG_FIREWALL

CONFIG_IP_FIREWALL

CONFIG_SYN_COOKIES

CONFIG_IP_FORWARD

Answer

Questions # 5:

On Linux systems, how can root logins be restricted?

Options:

With the /etc/default/login file

With the /etc/default/useradd file

With the .profile file

With the /etc/securetty file

Answer

Questions # 6:

You are working in Linux when a program hits a flaw and stops running. Which command can be used to end the process?

Options:

end

CTRL-ALT-DEL

stop

wait

kill

Answer

Questions # 7:

You're using a communications protocol that cannot handle encrypted passwords.

You need to disable the Shadow Password Suite. Which of the following pairs of commands restores the original clear-text passwords that you had encrypted into the /etc/shadow and /etc/gshadow files?

Options:

grpunconv; passunconv

grpunconv; pwunconv

gconv; passunconv

gconv; pwunconv

Answer

Questions # 8:

Which of the following steps would not substantially improve security over the typical Linux installation to a computer with typical hardware and settings?

Options:

Set a BIOS password.

Remove servers that were installed by default but that are not being used.

Set the computer to boot from a CD-ROM before a floppy.

Lock the computer case shut.

Answer

Questions # 9:

Which of the following lines would log all messages from news to the file /var/log/newslog?

Options:

news.* /var/log/newslog

news.!* /var/log/newslog

news.*;news.!=info /var/log/newslog

*news /var/log/newslog

Answer

Questions # 10:

Your supervisor tells you that she wants a crime database program, /opt/bin/anticrime run at the highest priority. From the ps aux | grep anticrime command, you find that anticrime is currently being run by user jb (your supervisor), with a PID of 1539. Which of the following commands gives the currently running anticrime program a higher priority on your system?