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

303-300 real exams

Exam Code: 303-300

Exam Name: LPIC Exam 303: Security, version 3.0

Updated: Aug 20, 2026

Q & A: 163 Questions and Answers

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Lpi 303-300 Exam Syllabus Topics:

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

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

1. Which directive is used in an OpenVPN server configuration in order to send network configuration information to the client? (Specify ONLY the option name without any values or parameters.) Solution: push Determine whether the given solution is correct?

A) Correct
B) Incorrect


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

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


3. What is the purpose of an extended attribute in Linux?

A) To mark a file as executable
B) To store additional metadata about a file
C) To encrypt a file for secure transmission
D) To compress a file to save disk space


4. What is the purpose of NSEC3 in DNSSEC?

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


5. Which option in an Apache HTTPD configuration file enables OCSP stapling? (Specify ONLY the option name without any values or parameters.) Solution: httpd-ssl.conf Determine whether the given solution is correct?

A) Correct
B) Incorrect


Solutions:

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

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