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

117-303 real exams

Exam Code: 117-303

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

Updated: Aug 23, 2026

Q & A: 101 Questions and Answers

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Lpi 117-303 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Network Security25%- Secure communication
  • 1. SSH configuration and hardening
    • 2. TLS/SSL concepts and configuration
      - VPN and secure tunneling
      • 1. IPsec fundamentals
        • 2. WireGuard/OpenVPN concepts
          Topic 2: Cryptography25%- Data Encryption
          • 1. Disk and filesystem encryption
            • 2. Symmetric and asymmetric encryption concepts
              - Public Key Infrastructure (PKI)
              • 1. Certificates and certificate authorities
                • 2. Certificate management tools
                  Topic 3: Threats and Vulnerability Assessment15%- Security scanning
                  • 1. Network scanning tools and techniques
                    • 2. Vulnerability assessment concepts
                      - Intrusion Detection
                      • 1. Host-based IDS (HIDS)
                        • 2. Network-based IDS (NIDS)
                          Topic 4: Organizational Security15%- Incident Response
                          • 1. Forensics basics
                            • 2. Incident handling lifecycle
                              - Security Policies
                              • 1. Security governance concepts
                                • 2. Audit and compliance basics
                                  Topic 5: Host Security20%- Access Control
                                  • 1. Mandatory Access Control (AppArmor/SELinux concepts)
                                    • 2. Linux file permissions and ACLs
                                      - System hardening
                                      • 1. Secure boot and firmware security
                                        • 2. Kernel security parameters

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

                                          Question 1

                                          Which of the following lines in the OpenVPN server.conf file will supply a DNS server for DHCP clients to use?

                                          A. push "dhcpoption DNS 10.142.232.4"
                                          B. push "options DNS 10.142.232.4"
                                          C. push "dhcp DNS 10.142.232.4"
                                          D. push "dhcpoptions DNS 10.142.232.4"


                                          Question 2

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


                                          Question 3

                                          CORRECT TEXT
                                          Where is the global list of known SSH host keys located? (Supply the full path and filename)


                                          Question 4

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


                                          Question 5

                                          Which option is required to syslogd in order for it to accept remote log messages?

                                          A. r
                                          B. s
                                          C. remote
                                          D. l


                                          Solutions:

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

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