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Lpi 117-303 Braindumps - in .pdf Free Demo

  • Exam Code: 117-303
  • Exam Name: LPI Level 3 Exam (LPI 303: Security)
  • Last Updated: Jul 23, 2026
  • Q & A: 101 Questions and Answers
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  • Exam Code: 117-303
  • Exam Name: LPI Level 3 Exam (LPI 303: Security)
  • Last Updated: Jul 23, 2026
  • Q & A: 101 Questions and Answers
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Lpi 117-303 Exam Syllabus Topics:

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

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

                                          1. What does the following iptables rule accomplish:
                                          iptables A INPUT s !127.0.0.0/8 p tcp dport 111 j DROP

                                          A) Drops all packets destined for port 111 unless they are from the local machine.
                                          B) Drops all packets originating from the local machine unless they are destined for port 111.
                                          C) Drops all packets from the LAN destined for port 111.
                                          D) Drops all packets destined for port 111 which originate from the local machine.


                                          2. Which of the following are valid ntop deployment scenarios? (Select THREE correct answers)

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


                                          3. Which of the following statements are true about Linux Extended Attributes on files? (Select TWO correct answers)

                                          A) An attribute value may be empty.
                                          B) Attribute storage counts toward disk quota use.
                                          C) Attribute use is enabled by mounting a partition with the attr option.
                                          D) An attribute is file, not inode, specific. Thus, a hard linked file in two locations could have different attributes.
                                          E) Attributes are not used by SELinux and other kernel security modules.


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


                                          5. What openssl command will generate a certificate signing request (CSR) using the private key file privkey.pem?

                                          A) openssl req key privkey.pem out cert.csr
                                          B) openssl gencsr key privkey.pem out cert.csr
                                          C) openssl req new key privkey.pem out cert.csr
                                          D) openssl gencsr new key privkey.pem out cert.csr


                                          Solutions:

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

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