Updated: Sep 01, 2026
No. of Questions: 163 Questions & Answers with Testing Engine
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| Certification Vendor: | Linux Professional Institute (LPI) |
|---|---|
| Exam Name: | LPIC Exam 303: Security, version 3.0 |
| Exam Number: | 303-300 |
| Related Certifications: | LPIC-3 High Availability & Storage LPIC-3 Mixed Environments LPIC-3 Virtualization & Containerization |
| Exam Format: | Fill-in-the-blank, Multiple-choice |
| Passing Score: | 500 (scaled score out of 800) |
| Certificate Validity Period: | 5 years |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 60 |
| Available Languages: | English, Japanese |
| Exam Price: | Approx. USD 200 (varies by region) |
| Recommended Training: | LPI Official Exam Objectives |
| Exam Registration: | Pearson VUE Scheduling LPI Official Registration |
| Sample Questions: | Lpi 303-300 Sample Questions |
| Exam Way: | Onsite at Pearson VUE test centers; Online proctored via OnVUE |
| Pre Condition: | Active LPIC-2 certification required to obtain LPIC-3 credential |
| Official Syllabus URL: | https://www.lpi.org/our-certifications/exam-303-objectives/ |
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Threats and Vulnerability Assessment | 5% | - Common Security Vulnerabilities and Threats - Penetration Testing |
| Topic 2: Cryptography | 17% | - Encrypted File Systems - X.509 Certificates and Public Key Infrastructures - X.509 Certificates for Encryption, Signing and Authentication - DNS and Cryptography |
| Topic 3: Access Control | 8% | - Discretionary Access Control - Mandatory Access Control |
| Topic 4: Host Security | 13% | - Host Hardening - Host Intrusion Detection - Resource Control |
| Topic 5: Network Security | 17% | - Network Intrusion Detection - Network Hardening - Virtual Private Networks - Packet Filtering |
Question 1
What is a man-in-the-middle attack?
A. An attack that aims to steal sensitive information
B. An attack that intercepts communications between two parties to steal information
C. An attack that targets a specific user or organization
D. An attack that floods a network or server with traffic to make it unavailable
Question 2
Which command installs and configures a new FreeIPA server, including all sub-components, and creates a new FreeIPA domain? (Specially ONLY the command without any path or parameters).
Solution: ipa-server-install
Determine whether the given solution is correct?
A. Incorrect
B. Correct
Question 3
Which of the following information, within a DNSSEC- signed zone, is signed by the key signing key?
A. The DS records pointing to the zone.
B. The non-DNSSEC records like A, AAAA or MX.
C. The NSEC or NSEC3 records of the zone.
D. The zone signing key of the zone.
E. The RRSIG records of the zone.
Question 4
In GnuPG's web of trust model, what does it mean when User A signs User B's public key?
A. User A's private key is now shared with User B.
B. User B's key is automatically revoked.
C. User A is granting User B permission to decrypt User A's messages.
D. User A is vouching that they have verified the authenticity of User B's public key and its association with User B's identity.
Question 5
Which of the following commands adds a new user usera to FreeIPA?
A. useradd usera --directory ipa --gecos "User A"
B. ipa-admin create user --account usera --fname User --iname A
C. idap- useradd -H Idaps://ipa-server CN=UserA --attribs "Firstname: User: Lastname: A"
D. ipa user-add usera --first User --last A
E. ipa-user- add usera --name "User A"
Solutions:
| Question 1 Answer: B | Question 2 Answer: B | Question 3 Answer: D | Question 4 Answer: D | Question 5 Answer: D |
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