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 22, 2026

Q & A: 101 Questions and Answers

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Lpi 117-303 Exam Syllabus Topics:

SectionObjectives
Topic 1: System Hardening and Monitoring- Security monitoring and auditing
  • 1. Intrusion detection systems (IDS)
    • 2. Log analysis and auditd
      - System security hardening
      • 1. Secure boot and system integrity
        • 2. Kernel and service hardening
          Topic 2: Network Security- Secure network services
          • 1. SSH hardening and configuration
            • 2. VPN setup and management
              - Firewall and packet filtering
              • 1. Network segmentation and filtering rules
                • 2. iptables and nftables configuration
                  Topic 3: Cryptography and Data Security- Encryption technologies
                  • 1. OpenSSL usage and certificate management
                    • 2. Symmetric and asymmetric encryption
                      - PKI and certificates
                      • 1. Certificate lifecycle management
                        • 2. X.509 certificates and trust chains
                          Topic 4: Access Control and Authentication- Authorization mechanisms
                          • 1. Sudo and privilege escalation control
                            • 2. File permissions and ACLs
                              - Authentication systems
                              • 1. LDAP integration
                                • 2. PAM configuration and usage
                                  Topic 5: Incident Response and Troubleshooting- Recovery and mitigation
                                  • 1. System recovery after compromise
                                    • 2. Backup and restore strategies
                                      - Security incident handling
                                      • 1. Incident detection and response procedures
                                        • 2. Forensics basics on Linux systems

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

                                          1. Which of the following export options, when specified in /etc/exports, will tell the server to use the NFSv4 Pseudofilesystem?

                                          A) fsid=3
                                          B) fsid=1
                                          C) fsid=2
                                          D) fsid=0


                                          2. Someone who wishes to receive an encrypted file has provided a key UID and a key fingerprint for verification to the data sender. Assuming that this key is on a public keyserver, what command will fetch the public key from the server?

                                          A) gpg findkeys UID
                                          B) gpg refreshkeys UID
                                          C) gpg getkeys UID
                                          D) gpg recvkeys UID


                                          3. What does the following iptables rule accomplish:
                                          iptables A INPUT d 10.142.232.1 p tcp dport 20:21 j ACCEPT

                                          A) Accepts all traffic 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) Drops all traffic coming from the host 10.142.232.1 destined for port 20 or 21.
                                          D) Forwards all traffic on port 20 and 21 to the host 10.142.232.1.


                                          4. Which command will set the user.author attribute on the file afile.txt?

                                          A) setfattr n user.author v "A. Author" afile.txt
                                          B) setfattr user.author:" Author" afile.txt
                                          C) setfattr user.author="A. Author" afile.txt
                                          D) setfattr a user.author="A. Author" afile.txt


                                          5. The apache administrator has added the following lines to the configuration files: <Directory />
                                          AllowOverride None
                                          </Directory>
                                          What is the purpose of this directive?

                                          A) It stops users from setting up .htaccess files unless specifically allowed in additional configuration.
                                          B) It prevents CGI scripts from modifying apache features dynamically.
                                          C) It prevents HTML files from being served out of the / directory.
                                          D) It stops users from serving HTML files from their home directories.


                                          Solutions:

                                          Question # 1
                                          Answer: D
                                          Question # 2
                                          Answer: D
                                          Question # 3
                                          Answer: D
                                          Question # 4
                                          Answer: A
                                          Question # 5
                                          Answer: A

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