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: Sep 28, 2026

Q & A: 101 Questions and Answers

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Lpi 117-303 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Topic 332: Host Security13%- Host Hardening
- Resource Control
- Host Intrusion Detection
Topic 2: Topic 334: Network Security17%- Network Intrusion Detection
- Virtual Private Networks
- Network Hardening
- Packet Filtering
Topic 3: Topic 333: Access Control8%- Mandatory Access Control
- Discretionary Access Control
Topic 4: Topic 331: Cryptography17%- X.509 Certificates for Encryption, Signing and Authentication
- X.509 Certificates and Public Key Infrastructures
- Encrypted File Systems
- DNS and Cryptography
Topic 5: Topic 335: Threats and Vulnerability Assessment5%- Penetration Testing
- Common Security Vulnerabilities and Threats

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

Question #1

Which of the following lines in the OpenVPN server.conf file will supply a DNS server for DHCP clients to use?

  • A. push "dhcpoptions DNS 10.142.232.4"
  • B. push "dhcp DNS 10.142.232.4"
  • C. push "dhcpoption DNS 10.142.232.4"
  • D. push "options DNS 10.142.232.4"
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #2

SELinux is a Linux feature that:

  • A. ensures that system files referenced in the Mandatory Access Control policies are not modified and alerts administrators when changes occur.
  • B. monitors system file access by unprivileged users and warns them when they are trying to gain access to files beyond their permission levels set in the Mandatory Access Control policies.
  • C. enforces Mandatory Access Control policies that can restrict user space programs and system servers to the minimum amount of privilege required to operate correctly.
  • D. provides only Mandatory Access Control policies. Additional access control models such as Rolebased access control require additional tools to implement.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #3

What is one of the primary claimed benefits of Smack over SELinux?

  • A. Smack allows users to share files without administrator intervention.
  • B. Smack implements Rule Set Based Access Control. SELinux doesn't support this model.
  • C. SELinux has export restrictions placed on it by the NSA.
  • D. Configuration of Smack is much more simple.
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #4

An administrator is capturing traffic with Wireshark and is only seeing ARP traffic. What is the most likely cause of this?

  • A. The network interface on which the scan is running is not in promiscuous mode.
  • B. The machine is on a switched network and is therefore only seeing local and broadcast/multicast packets.
  • C. The administrator did not enable the TCP and UDP options when starting the scan.
  • D. The network interface on which the scan is running has the ARP_ONLY flag set.
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #5

What is true about the permissions for the file afile given the following output from getfacl? (Select TWO correct answers) % getfacl afile # file: afile # owner: matt # group: support user::rwx user:hugh:rw group::r group:staff:rx mask::rwx other::r

  • A. The user matt will not be able to edit this file.
  • B. The user hugh will be able to read the contents of the file.
  • C. Anyone in the users group will be able to read the file.
  • D. Anyone in the staff group will be able to read and execute the file.
  • E. Anyone in the support group will be able to read and execute the file.
Reveal Solution  Discussion  0

Correct Answer: B,D  🗳️

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