Lpi 303-300 actual dump : LPIC Exam 303: Security, version 3.0

303-300
  • Exam Code: 303-300
  • Exam Name: LPIC Exam 303: Security, version 3.0
  • Updated: Aug 08, 2026
  • Q & A: 163 Questions and Answers

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Lpi 303-300 Exam Syllabus Topics:

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

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

1. Which nftables command displays the currently active ruleset, including all tables, chains, and rules?

A) nft list ruleset
B) nft get rules
C) nft show tables
D) nft dump chains


2. Which command is used to generate a new GnuPG key pair interactively?

A) gpg --encrypt
B) gpg --export
C) gpg --list-keys
D) gpg --gen-key


3. Which OpenSSL command generates a new RSA private key and a corresponding Certificate Signing Request (CSR) in a single step?

A) openssl req -new -newkey rsa:2048 -keyout key.pem -out req.csr
B) openssl x509 -req -in key.pem
C) openssl genpkey -algorithm RSA
D) openssl ca -in req.csr


4. In an AppArmor profile, what does the "complain" mode do?

A) It blocks all restricted actions and terminates the process.
B) It automatically generates a new profile based on observed behavior.
C) It disables AppArmor for that specific profile only.
D) It logs policy violations without enforcing restrictions, similar to SELinux permissive mode.


5. Which permission bit allows a user to delete a file?

A) SetUID
B) Write
C) Read
D) Execute


Solutions:

Question # 1
Answer: A
Question # 2
Answer: D
Question # 3
Answer: A
Question # 4
Answer: D
Question # 5
Answer: B

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