Lpi 303-300 Q&A - in .pdf

  • 303-300 pdf
  • Exam Code: 303-300
  • Exam Name: LPIC Exam 303: Security, version 3.0
  • Updated: Jul 31, 2026
  • Q & A: 163 Questions and Answers
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  • Exam Code: 303-300
  • Exam Name: LPIC Exam 303: Security, version 3.0
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  • Updated: Jul 31, 2026
  • Q & A: 163 Questions and Answers
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Lpi 303-300 Q&A - Testing Engine

  • 303-300 Testing Engine
  • Exam Code: 303-300
  • Exam Name: LPIC Exam 303: Security, version 3.0
  • Updated: Jul 31, 2026
  • Q & A: 163 Questions and Answers
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Lpi 303-300 Exam Syllabus Topics:

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

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

1. In Suricata, what is the purpose of a "rule" file, such as those found in the emerging-threats.rules collection?

A) It defines user authentication policies for the Suricata management interface.
B) It defines the signatures and conditions used to detect specific types of malicious or suspicious network traffic.
C) It configures which network interfaces Suricata should monitor.
D) It defines firewall NAT translation rules.


2. Which of the following is an example of a behavioral-based HID technique?

A) Signature-based detection
B) Heuristic-based detection
C) Rule-based detection
D) Anomaly-based detection


3. What is an asymmetric key?

A) A key used for both encryption and decryption that is generated in a pair
B) A key used for decryption that is different from the key used for encryption
C) A key used for encryption and decryption that is the same
D) A key used for encryption that is different from the key used for decryption


4. What is the purpose of an access control list in Linux?

A) To mark a file as executable
B) To specify fine-grained permissions for users and groups
C) To compress a file to save disk space
D) To encrypt a file for secure transmission


5. Which of the following DNS record types can the command dnssec-signzone add to a zone?
(Choose THREE correct answers.)

A) RRSIG
B) ASIG
C) NSEC
D) NSSIG
E) NSEC3


Solutions:

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

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