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Lpi 303-300

303-300

Exam Code: 303-300

Exam Name: LPIC Exam 303: Security, version 3.0

Updated: Aug 24, 2026

Q & A: 163 Questions and Answers

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Lpi 303-300 Exam Syllabus Topics:

SectionObjectives
Topic 1: Vulnerability Assessment and Monitoring- Intrusion detection systems (IDS)
- Log analysis and auditing
Topic 2: Access Control- Discretionary Access Control (DAC)
- Mandatory Access Control (MAC)
- SELinux and AppArmor
Topic 3: Cryptography- Public key infrastructure (PKI)
- OpenSSL usage and configuration
- Data encryption and signing
Topic 4: Application Security- Container and service security
- Secure software configuration
Topic 5: Security Administration- Authentication mechanisms
- System hardening
Topic 6: Network Security- Firewalls (iptables, nftables)
- VPN technologies
- Secure network services

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

1. Which mount option prevents the execution of binaries located on the mounted filesystem?

A) noexec
B) nosuid
C) ro
D) nodev


2. Which of the following commands adds a new user usera to FreeIPA?

A) idap- useradd -H Idaps://ipa-server CN=UserA --attribs "Firstname: User: Lastname: A"
B) ipa-user- add usera --name "User A"
C) useradd usera --directory ipa --gecos "User A"
D) ipa-admin create user --account usera --fname User --iname A
E) ipa user-add usera --first User --last A


3. Which command is used to set the permissions of a file in Linux?

A) chgrp
B) chown
C) setfacl
D) chmod


4. What is the purpose of NSEC3 in DNSSEC?

A) To authenticate a DNS server
B) To prevent zone enumeration
C) To provide information about DNSSEC key signing keys
D) To sign a DNS zone


5. What is a honeypot?

A) A type of phishing scam
B) A network security tool designed to lure attackers into a trap
C) A type of denial-of-service attack
D) A type of virus


Solutions:

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

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