Purchase Lpi : 117-303 Exam Materials and then pass exam easily

Updated: Sep 03, 2026

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Lpi 117-303 Exam Overview:

Certification Vendor:Linux Professional Institute (LPI)
Exam Name:LPIC-3 Security 303 Exam
Exam Number:303-300 (commonly referred to as 117-303 in some training catalogs)
Exam Duration:90 minutes
Real Exam Qty:60 (typically)
Available Languages:English, Portuguese, Japanese, Spanish
Exam Price:USD 200–300 (varies by region)
Exam Format:Multiple choice, Fill-in-the-blank, Multiple selection
Related Certifications:LPIC-3 Virtualization and Containerization
LPIC-3 Mixed Environment
LPIC-1
LPIC-2
Passing Score:500 out of 800
Certificate Validity Period:5 years
Recommended Training:Linux Professional Institute Training Resources
LPI Official Training Materials
Exam Registration:Pearson VUE Registration Portal
LPI Official Certification Page
Sample Questions:Lpi 117-303 Sample Questions
Exam Way:Computer-based exam delivered via Pearson VUE test centers or online proctored exam.
Pre Condition:Valid LPIC-2 certification is required before taking LPIC-3 Security exam.
Official Syllabus URL:https://www.lpi.org/our-certifications/lpic-3-303-security/

Lpi 117-303 Exam Syllabus Topics:

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

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

                                          Question #1

                                          Which statements are true of the following Wireshark capture filter:
                                          (tcp[2:2] > 1500 and tcp[2:2] < 1550) or (tcp[4:2] > 1500 and tcp[4:2] < 1550)
                                          (Select TWO correct answers)

                                          • A. Up to four bytes are being check in each packet.
                                          • B. Traffic on ports 15011549 is being captured.
                                          • C. Traffic on ports 15001550 is being captured.
                                          • D. Only two bytes are being checked in each packet.
                                          • E. Every packet being checked has a 2 byte offset.
                                          Answer: A,B
                                          Question #2

                                          CORRECT TEXT
                                          Postfix daemons can be chroot'd by setting the chroot flag in ____________. (Supply only the filename, without a path)

                                          Answer:

                                          master.cf

                                          Question #3

                                          What openssl command will generate a private RSA key of 2048 bits and no passphrase?

                                          • A. openssl genrsa nopass out privkey.pem 2048
                                          • B. openssl genrsa des3 out privkey.pem 2048
                                          • C. openssl genrsa nopass des3 out privkey.pem 2048
                                          • D. openssl genrsa out privkey.pem 2048
                                          Answer: D
                                          Question #4

                                          On a new Linux system, the root user is being asked to provide the root user password before being able to use the su command. What line in the /etc/pam.d/su file will allow root to use su without supplying passwords?

                                          • A. auth required pam_rootok.so
                                          • B. auth sufficient pam_rootok.so
                                          • C. auth required pam_norootpw.so
                                          • D. auth sufficient pam_norootpw.so
                                          Answer: B
                                          Question #5

                                          What can proxymap be used for in a Postfix installation? (Select TWO correct answers)

                                          • A. Creating and querying Postfix lookup tables.
                                          • B. Mapping mail user IDs to system accounts.
                                          • C. Consolidating the number of open lookup tables.
                                          • D. Creating and querying Postfix alias databases.
                                          • E. Overcoming chroot restrictions.
                                          Answer: C,E

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