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Lpi 117-303 : LPI Level 3 Exam (LPI 303: Security)

117-303

Exam Code: 117-303

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

Updated: Nov 06, 2026

Q & A: 101 Questions and Answers

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Lpi 117-303 Exam Syllabus Topics:

SectionWeightObjectives
Network Security25%- Secure communication
  • 1. SSH configuration and hardening
    • 2. TLS/SSL concepts and configuration
      - VPN and secure tunneling
      • 1. WireGuard/OpenVPN concepts
        • 2. IPsec fundamentals
          Threats and Vulnerability Assessment15%- Security scanning
          • 1. Network scanning tools and techniques
            • 2. Vulnerability assessment concepts
              - Intrusion Detection
              • 1. Network-based IDS (NIDS)
                • 2. Host-based IDS (HIDS)
                  Cryptography25%- Data Encryption
                  • 1. Symmetric and asymmetric encryption concepts
                    • 2. Disk and filesystem encryption
                      - Public Key Infrastructure (PKI)
                      • 1. Certificates and certificate authorities
                        • 2. Certificate management tools
                          Organizational Security15%- Security Policies
                          • 1. Security governance concepts
                            • 2. Audit and compliance basics
                              - Incident Response
                              • 1. Incident handling lifecycle
                                • 2. Forensics basics
                                  Host Security20%- System hardening
                                  • 1. Secure boot and firmware security
                                    • 2. Kernel security parameters
                                      - Access Control
                                      • 1. Linux file permissions and ACLs
                                        • 2. Mandatory Access Control (AppArmor/SELinux concepts)

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

                                          Question #1
                                          Which of the following are valid ntop deployment scenarios? (Select THREE correct answers)

                                          A. Simple Host
                                          B. Switched Gateway
                                          C. Mirror Line
                                          D. Public Site
                                          E. Border Gateway


                                          Question #2
                                          CORRECT TEXT
                                          There is a configuration file being managed by RCS. Based on timestamps, it appears that someone has modified the file without checking it into RCS. What command can be used to compare the configuration file with the latest committed version? (Specify the command only, no path or argument information)


                                          Question #3
                                          What is the purpose of tripwire?

                                          A. To monitor a server for breakin attempts and, if desired, ban the IP address.
                                          B. To enforce mandatory access control policies to confine users to the minimum amount of privilege required.
                                          C. To act as a honeypot and attract attackers.
                                          D. To identify changes to critical system files and directories.


                                          Question #4
                                          What does the following iptables rule accomplish:
                                          iptables A INPUT d 10.142.232.1 p tcp dport 20:21 j ACCEPT

                                          A. Drops all traffic coming from the host 10.142.232.1 destined for port 20 or 21.
                                          B. Forwards all traffic not on port 20 or 21 to the host 10.142.232.1.
                                          C. Forwards all traffic on port 20 and 21 to the host 10.142.232.1.
                                          D. Accepts all traffic from the host 10.142.232.1 destined for port 20 or 21.


                                          Question #5
                                          CORRECT TEXT
                                          What is the default UDP port for OpenVPN traffic?


                                          Solutions:

                                          Question #1
                                          Correct Answer: A,C,E
                                          Question #2
                                          Correct Answer: Only visible for members
                                          Question #3
                                          Correct Answer: D
                                          Question #4
                                          Correct Answer: C
                                          Question #5
                                          Correct Answer: Only visible for members

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