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

1. How are SELinux permissions related to standard Linux permissions?

A) SELinux permissions are verified before standard Linux permissions.
B) Standard Linux permissions override SELinux permissions.
C) SELinux permissions are verified after standard Linux permissions.
D) SELinux permissions override standard Linux permissions.

2. Which of the following parameters should be set in main.cf to enable TLS in Postfix?

A) smtpd_tls_key_file, smtpd_tls_CAfile, smtpd_use_tls, smtpd_tls_pem_file
B) smtpd_tls_CAfile, smtpd_use_tls, smtpd_tls_pem_file, smtpd_tls_cert_file
C) smtpd_tls_cert_file, smtpd_tls_key_file, smtpd_tls_CAfile, smtpd_use_tls
D) smtpd_use_tls, smtpd_tls_pem_file, smtpd_tls_cert_file, smtpd_tls_key_file

3. In which of the following scenarios MUST an administrator use ethernet bridging instead of routing when configuring an OpenVPN site? (Select TWO correct answers)

A) It will be necessary to use an MTU setting other than the default.
B) NetBIOS traffic must be able to traverse the VPN without implementing a WINS server.
C) The IPv4 protocol is required.
D) The IPX protocol is required.
E) Some OpenVPN clients will be installed on laptops and must be able to connect from different locations.

4. When a user logs into a system using SSH, what is the format of SELinux security context which will assign the user_r role and the user_t domain to their login sessions?

A) sshd_t:system_r user_t:user_r
B) user_r:user_t system_r:sshd_t
C) system_r:sshd_t user_r:user_t
D) user_t:user_r sshd_t:system_r

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

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

Solutions: