LPIC Exam 303: Security, version 3.0: 303-300 Exam

"LPIC Exam 303: Security, version 3.0", also known as 303-300 exam, is a Lpi Certification. With the complete collection of questions and answers, PrepPDF has assembled to take you through 163 Q&As to your 303-300 Exam preparation. In the 303-300 exam resources, you will cover every field and category in LPIC-3 Certification helping to ready you for your successful Lpi Certification.

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  • Exam Code: 303-300
  • Exam Name: LPIC Exam 303: Security, version 3.0
  • Certification Provider: Lpi
  • Corresponding Certification: LPIC-3
  • Updated: Aug 05, 2026
  • No. of Questions: 163 Questions & Answers with Testing Engine
  • Download Limit: Unlimited

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Lpi 303-300 Exam Syllabus Topics:

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

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

1. What is Cryptography?

A) The art of sending anonymous messages
B) The art of sending secret messages
C) The art of sending public messages
D) The art of decoding messages


2. What is the purpose of NSEC3 in DNSSEC?

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


3. What is phishing?

A) A type of virus
B) A type of malware that disguises itself as legitimate software
C) A type of denial-of-service attack
D) A type of social engineering attack


4. Which of the following openssl commands generates a certificate signing request (CSR) using the already existing private key contained in the file private/ keypair.pem?

A) openssl req -key private/keypair.pem -out req/csr.pem
B) openssl gencsr -new- key private/keypair.pem -out req/csr.pem
C) openssl req - new -key private/keypair.pem -out req/csr.pem
D) openssl gencsr -key private/keypair.pem -out req/csr.pem


5. Which of the following utilities is used to generate keys for DNSSEC?

A) delv
B) dnssec-keygen
C) dnssec-dsfromkey
D) rndc


Solutions:

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

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