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

1. Which of the following are builtin chains for the iptables nat table? (Select THREE correct answers)

A) INPUT
B) PROCESSING
C) OUTPUT
D) PREROUTING
E) POSTROUTING

2. 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_rootok.so
C) auth required pam_norootpw.so
D) auth sufficient pam_norootpw.so

3. What is the purpose of the Safe Checks option in a Nessus configuration?

A) When validating a Nessus configuration file, the nessusd process will not be interrupted.
B) To prevent the use of plugins which may have a negative effect on the network being scanned.
C) Enables secure scanning over an encrypted tunnel.
D) To prevent the use of plugins which may leave the Nessus server vulnerable during the scanning process.

4. What openssl command will generate a selfsigned test certificate?

A) openssl req key privkey.pem out cacert.pem days 365
B) openssl req new x509 key privkey.pem out cacert.pem days 365
C) openssl sign key privkey.pem out cacert.pem days 365
D) openssl sign new x509 key privkey.pem out cacert.pem days 365

5. SELinux has just been installed on a Linux system and the administrator wants to use SELinux in permissive mode in order to audit the various services on the system. What command will switch SELinux into permissive mode?

A) /etc/init.d/selinux stop
B) setenforce 0
C) selinux passive
D) /etc/init.d/selinux startpassive

Solutions: