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

  • Exam Code: 117-303
  • Exam Name: LPI Level 3 Exam (LPI 303: Security)
  • Updated: Aug 17, 2026     Q & A: 101 Questions and Answers

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Lpi 117-303 Exam Syllabus Topics:

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

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

                                          1. CORRECT TEXT
                                          A user that is allowed to use the su command under SELinux is also allowed to switch from the user role to the sysadmin role. What command will run a new shell for the user in the new context? (Specify the command only, with no path, options or arguments)


                                          2. What is the purpose of tripwire?

                                          A) To identify changes to critical system files and directories.
                                          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 monitor a server for breakin attempts and, if desired, ban the IP address.


                                          3. Which of the following statements are advantages that Mandatory Access Control has over Discretionary Access Control models? (Select TWO correct answers)

                                          A) MAC policies increase the ability of the root user to correct errors.
                                          B) Trust is placed in the administrators and not in individual users.
                                          C) MAC policies are easier to configure than use of DAC.
                                          D) MAC adds the concept of privileged remote users which is not available with simple DAC.
                                          E) MAC lets the kernel help decide if an object, such as a device or process, can access another object.


                                          4. Which GPG command is used to create a revocation certificate in case a GPG key ever needs to be cancelled?

                                          A) gpg createrevoke name
                                          B) gpg editkey name followed with the revoke command.
                                          C) gpg genrevoke name
                                          D) gpg revoke name


                                          5. What are the steps which must be followed to enable serverwide zone transfers between two BIND 9 servers securely using TSIG?

                                          A) Generate a key, specify the private key in the named configuration on both servers, create a server statement in the named configuration on both servers.
                                          B) Generate a key, specify the private key in the named configuration on one server and the public key in the named configuration on the other, create a server statement in the named configuration on both servers.
                                          C) Generate a key, specify the public key in the named configuration on both servers, create a server statement in the named configuration on both servers.
                                          D) Generate a key, specify the private key in the named configuration on one server and the public key in the named configuration on the other, create a remote statement in the named configuration on both servers.


                                          Solutions:

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

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