Try Lpi : 303-300 valid & accurate questions and answers

Updated: Sep 01, 2026

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Lpi 303-300 Exam Overview:

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/

Lpi 303-300 Exam Syllabus Topics:

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

Lpi LPIC Exam 303: Security, version 3.0 Sample Questions:

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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