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Lpi 117-303

117-303

Exam Code: 117-303

Exam Name: LPI Level 3 Exam (LPI 303: Security)

Updated: Sep 17, 2026

Q & A: 101 Questions and Answers

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Lpi 117-303 Exam Syllabus Topics:

SectionObjectives
Access Control and Authentication- Authentication systems
  • 1. LDAP integration
    • 2. PAM configuration and usage
      - Authorization mechanisms
      • 1. File permissions and ACLs
        • 2. Sudo and privilege escalation control
          Cryptography and Data Security- Encryption technologies
          • 1. OpenSSL usage and certificate management
            • 2. Symmetric and asymmetric encryption
              - PKI and certificates
              • 1. Certificate lifecycle management
                • 2. X.509 certificates and trust chains
                  Incident Response and Troubleshooting- Recovery and mitigation
                  • 1. Backup and restore strategies
                    • 2. System recovery after compromise
                      - Security incident handling
                      • 1. Incident detection and response procedures
                        • 2. Forensics basics on Linux systems
                          Network Security- Firewall and packet filtering
                          • 1. Network segmentation and filtering rules
                            • 2. iptables and nftables configuration
                              - Secure network services
                              • 1. SSH hardening and configuration
                                • 2. VPN setup and management
                                  System Hardening and Monitoring- System security hardening
                                  • 1. Kernel and service hardening
                                    • 2. Secure boot and system integrity
                                      - Security monitoring and auditing
                                      • 1. Intrusion detection systems (IDS)
                                        • 2. Log analysis and auditd

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

                                          Question #1
                                          Which of the following are common techniques for securing Nagios? (Select THREE correct answers)

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


                                          Question #2
                                          Which of the following are valid dmcrypt modes? (Choose THREE correct answers)

                                          A. GMR
                                          B. KWG
                                          C. XTS
                                          D. LRW
                                          E. ESSIV


                                          Question #3
                                          Which of the following statements is true when querying the extended attributes of a file that has no extended attributes set?

                                          A. No output will be produced and getfattr will exit with a value of 1.
                                          B. getfattr will print a warning and exit with a value of 0.
                                          C. No output will be produced and getfattr will exit with a value of 0.
                                          D. getfattr will print a warning and exit with a value of 1.


                                          Question #4
                                          What does the following iptables rule accomplish:
                                          iptables A INPUT s 208.77.188.166 j DROP

                                          A. Forwards all incoming traffic to the host 208.77.188.166.
                                          B. Accepts all traffic from 208.77.188.166.
                                          C. Drops all traffic from 208.77.188.166.
                                          D. Nothing, there is a syntax error.


                                          Question #5
                                          The apache administrator has added the following lines to the configuration files: <Directory />
                                          AllowOverride None
                                          </Directory>
                                          What is the purpose of this directive?

                                          A. It stops users from setting up .htaccess files unless specifically allowed in additional configuration.
                                          B. It prevents CGI scripts from modifying apache features dynamically.
                                          C. It prevents HTML files from being served out of the / directory.
                                          D. It stops users from serving HTML files from their home directories.


                                          Solutions:

                                          Question #1
                                          Correct Answer: B,D,E
                                          Question #2
                                          Correct Answer: C,D,E
                                          Question #3
                                          Correct Answer: C
                                          Question #4
                                          Correct Answer: C
                                          Question #5
                                          Correct Answer: A

                                          117-303 Related Exams
                                          304-200J - LPIC-3 Exam 304: Virtualization & High Availability, version 2.0 (304-200日本語版)
                                          304-150J - LPI Level 3 Exam 304, Senior Level Linux Certification, Virtualization & High Availability (304-150日本語版)
                                          304-200 - LPIC-3 Exam 304: Virtualization & High Availability, version 2.0
                                          117-304 - LPI Level 3 Exam (LPI 304: Virtualization and High Availability)
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