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Lpi LPI Level 3 Exam (LPI 303: Security) Sample Questions:

1. An administrator is capturing traffic with Wireshark and is only seeing ARP traffic. What is the most likely cause of this?

A) The administrator did not enable the TCP and UDP options when starting the scan.
B) The network interface on which the scan is running is not in promiscuous mode.
C) The network interface on which the scan is running has the ARP_ONLY flag set.
D) The machine is on a switched network and is therefore only seeing local and broadcast/multicast packets.

2. Which of the following can be done to secure a BIND server? (Select THREE correct answers)

A) Require clients to authenticate with a password before querying the server.
B) Configure ACLs.
C) Encrypt DNS traffic using SSL/TLS.
D) Run the BIND daemon as a nonroot user.
E) Run the BIND daemon in a chroot jail

3. What openssl command will generate a certificate signing request (CSR) using the private key file privkey.pem?

A) openssl gencsr new key privkey.pem out cert.csr
B) openssl gencsr key privkey.pem out cert.csr
C) openssl req key privkey.pem out cert.csr
D) openssl req new key privkey.pem out cert.csr

4. On a new Linux system, the root user is being asked to provide the root user password before being able to use the su command. What line in the /etc/pam.d/su file will allow root to use su without supplying passwords?

A) auth required pam_rootok.so
B) auth sufficient pam_norootpw.so
C) auth sufficient pam_rootok.so
D) auth required pam_norootpw.so

5. Which of the following are common techniques for securing Nagios? (Select THREE correct answers)

A) Do not run as the root user.
B) Require authentication for access to the CGI scripts.
C) Compile Nagios with the enabletls option.
D) Run Nagios in a chroot jail.
E) Disable external commands.

Solutions: