LPI Level 3 Exam (LPI 303: Security): 117-303 Exam


"LPI Level 3 Exam (LPI 303: Security)", also known as 117-303 exam, is a Lpi Certification. With the complete collection of questions and answers, Pass4sureCert has assembled to take you through 101 Q&As to your 117-303 Exam preparation. In the 117-303 exam resources, you will cover every field and category in LPIC Level3 Certification helping to ready you for your successful Lpi Certification.

  • Exam Code: 117-303
  • Exam Name: LPI Level 3 Exam (LPI 303: Security)
  • Total Questions: 101
  • Certification Provider: Lpi
  • Corresponding Certification: LPIC Level3
  • Updated on: Sep 03, 2026

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Lpi 117-303 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: 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 2: Cryptography25%- Public Key Infrastructure (PKI)
          • 1. Certificate management tools
            • 2. Certificates and certificate authorities
              - Data Encryption
              • 1. Symmetric and asymmetric encryption concepts
                • 2. Disk and filesystem encryption
                  Topic 3: Organizational Security15%- Incident Response
                  • 1. Forensics basics
                    • 2. Incident handling lifecycle
                      - Security Policies
                      • 1. Audit and compliance basics
                        • 2. Security governance concepts
                          Topic 4: 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
                                  Topic 5: Threats and Vulnerability Assessment15%- Intrusion Detection
                                  • 1. Network-based IDS (NIDS)
                                    • 2. Host-based IDS (HIDS)
                                      - Security scanning
                                      • 1. Vulnerability assessment concepts
                                        • 2. Network scanning tools and techniques

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

                                          Question 1

                                          In the Puppet centralized configuration management tool, a manifest is:

                                          A. a list of all files related to a configuration target.
                                          B. a list of all target configurations.
                                          C. a list of the important services on a target configuration.
                                          D. a configuration document that describes the target configuration and the steps required to achieve it.


                                          Question 2

                                          You have downloaded a file named file.tgz along with a signature file named file.tgz.asc. Which commands can be used to verify that file.tgz has not been tampered with since the file creator created the signature?
                                          Assume that you have already retrieved the public key of the file creator. (Select THREE correct answers)

                                          A. gpg verify file.tgz.asc
                                          B. gpgv file.tgz.asc
                                          C. gpg verify file.tgz
                                          D. gpgv verify file.tgz.asc
                                          E. gpg verify file.tgz.asc file.tgz


                                          Question 3

                                          You wish to revoke write access for all groups and named users on a file. Which command will make the correct ACL changes?

                                          A. setfacl m group:*:rx,user:*:rx afile
                                          B. setfacl m mask::rx afile
                                          C. setfacl x group:*:rx,user:*:rx afile
                                          D. setfacl x mask::rx afile


                                          Question 4

                                          Which GPG command will publish a public key to a public key server?

                                          A. gpg sendkeys UID
                                          B. gpg exportkeys UID
                                          C. gpg publishkeys UID
                                          D. gpg pushkeys UID


                                          Question 5

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

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


                                          Solutions:

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

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