Lpi 303-300 Valid Q&A - in .pdf

  • 303-300 pdf
  • Exam Code: 303-300
  • Exam Name: LPIC Exam 303: Security, version 3.0
  • Updated: Jul 22, 2026
  • Q & A: 163 Questions and Answers
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Lpi 303-300 Valid Q&A - Testing Engine

  • 303-300 Testing Engine
  • Exam Code: 303-300
  • Exam Name: LPIC Exam 303: Security, version 3.0
  • Updated: Jul 22, 2026
  • Q & A: 163 Questions and Answers
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Lpi 303-300 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Host Security9%- Host Intrusion Detection
  • 1. Rootkit detection tools
  • 2. AIDE integrity checking
  • 3. Linux Audit system
  • 4. Malware detection
- Host Hardening
  • 1. Kernel runtime protection
  • 2. Service hardening
  • 3. Secure boot process
- Resource Control
  • 1. ulimits
  • 2. Process resource management
  • 3. cgroups
Topic 2: Network Security12%- Packet Filtering
  • 1. IP sets
  • 2. iptables and ip6tables
  • 3. nftables awareness
  • 4. NAT and connection tracking
- Virtual Private Networks
  • 1. OpenVPN
  • 2. IPsec and strongSwan
  • 3. WireGuard
- Network Hardening
  • 1. Secure network services
  • 2. TCP wrappers and service restrictions
- Network Intrusion Detection
  • 1. tcpdump
  • 2. Kismet
  • 3. Wireshark
  • 4. Snort
Topic 3: Cryptography8%- Data Encryption
  • 1. Use LUKS and dm-crypt
  • 2. Secure data transmission
  • 3. Encrypt files and storage devices
- X.509 Certificates and Public Key Infrastructures
  • 1. Create and manage certificates
  • 2. Manage certificate authorities
  • 3. Certificate revocation and validation
- OpenPGP
  • 1. Web of trust concepts
  • 2. Sign and encrypt data
  • 3. Manage GnuPG keys
Topic 4: Access Control8%- Authentication and Authorization
  • 1. Centralized authentication
  • 2. PAM
  • 3. Multi-factor authentication
- Mandatory Access Control
  • 1. AppArmor configuration
  • 2. SELinux management
  • 3. Policy enforcement
- Discretionary Access Control
  • 1. Extended attributes
  • 2. POSIX ACLs
  • 3. File permissions
Topic 5: Threats and Vulnerability Assessment3%- Vulnerability Assessment
  • 1. Risk identification
  • 2. Security scanning
  • 3. OpenVAS
- Threat Analysis
  • 1. Application threats
  • 2. Host-based threats
  • 3. Credential and confidentiality threats
  • 4. Network threats

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

1. What is the purpose of the program snort-stat?

A) It reports whether the Snort process is still running and processing packets.
B) It displays statistics from the running Snort process.
C) It returns the status of all configured network devices.
D) It reads syslog files containing Snort information and generates port scan statistics.
E) It displays the status of all Snort processes.


2. Which of the following statements are true regarding the certificate of a Root CA? (Choose THREE correct answers.)

A) It must contain a host name as the common name.
B) It is a self-signed certificate.
C) It does not include the private key of the CA.
D) It has an infinite lifetime and never expires.
E) It must contain an X509v3 Authority extension.


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

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


4. Which of the following information, within a DNSSEC- signed zone, is signed by the key signing key?

A) The NSEC or NSEC3 records of the zone.
B) The non-DNSSEC records like A, AAAA or MX.
C) The DS records pointing to the zone.
D) The zone signing key of the zone.
E) The RRSIG records of the zone.


5. Which Fail2ban configuration file typically contains local, site-specific overrides that should not be modified in the default jail.conf file?

A) action.d/iptables.conf
B) jail.local
C) fail2ban.conf
D) filter.d/sshd.conf


Solutions:

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

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