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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: Sep 04, 2026

Q & A: 101 Questions and Answers

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Lpi 117-303 Exam Syllabus Topics:

SectionWeightObjectives
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)
          Host Security20%- Access Control
          • 1. Linux file permissions and ACLs
            • 2. Mandatory Access Control (AppArmor/SELinux concepts)
              - System hardening
              • 1. Kernel security parameters
                • 2. Secure boot and firmware security
                  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
                          Cryptography25%- Public Key Infrastructure (PKI)
                          • 1. Certificates and certificate authorities
                            • 2. Certificate management tools
                              - Data Encryption
                              • 1. Disk and filesystem encryption
                                • 2. Symmetric and asymmetric encryption concepts
                                  Organizational Security15%- Incident Response
                                  • 1. Incident handling lifecycle
                                    • 2. Forensics basics
                                      - Security Policies
                                      • 1. Audit and compliance basics
                                        • 2. Security governance 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. Mirror Line
                                          B. Simple Host
                                          C. Public Site
                                          D. Switched Gateway
                                          E. Border Gateway


                                          Question #2

                                          Under which path is the selinux pseudofilesystem found?

                                          A. /dev/selinux
                                          B. /selinux
                                          C. /proc/selinux
                                          D. /sys/selinux
                                          E. /var/selinux


                                          Question #3

                                          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. system_r:sshd_t user_r:user_t
                                          C. user_r:user_t system_r:sshd_t
                                          D. user_t:user_r sshd_t:system_r


                                          Question #4

                                          The system administrator is keeping local configuration file changes in RCS. What command will commit the file to RCS revision control AND keep a local, unlocked copy of the latest version of the file?

                                          A. ci u file
                                          B. rcs commit file
                                          C. ci file
                                          D. rcs o file


                                          Question #5

                                          When adding additional users to a file's extended ACLs, what is true about the default behaviour of the ACL mask for the file?

                                          A. The mask is left unchanged.
                                          B. If required, a warning is printed indicating that the mask is too restrictive for the permissions being granted.
                                          C. The mask is modified to be the union of all permissions of the file owner, owning group and all named users and groups.
                                          D. The mask is modified to be the union of all permissions of the owning group and all named users and groups.


                                          Solutions:

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

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