Exam Code: 303-300
Exam Name: LPIC Exam 303: Security, version 3.0
Certification Provider: Lpi
Corresponding Certification: LPIC-3
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Lpi 303-300 Exam Syllabus Topics:

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

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

How are SELinux permissions related to standard Linux permissions? (Choose TWO correct answers.)

  • A. SELinux permissions are verified after standard Linux permissions.
  • B. Standard Linux permissions override SELinux permissions.
  • C. SELinux permissions override standard Linux permissions.
  • D. SELinux permissions are verified before standard Linux permissions.
Reveal Solution  Discussion  0

Correct Answer: A,B  🗳️

Which of the following is used to perform DNSSEC validation on behalf of clients?

  • A. Secondary name server
  • B. Recursive name server
  • C. Primary name server
  • D. Authoritative name server
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Which PAM module is used to enforce password complexity requirements, such as minimum length and character class requirements?

  • A. pam_limits
  • B. pam_access
  • C. pam_cracklib or pam_pwquality
  • D. pam_unix
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Explanation: Only visible for VCE4Plus members. You can sign-up / login (it's free).

What is privilege escalation?

  • A. An attack that aims to steal sensitive information
  • B. An attack that exploits a vulnerability to gain elevated privileges
  • C. An attack that targets a specific user or organization
  • D. An attack that floods a network or server with traffic to make it unavailable
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

What type of activity does HID monitor for?

  • A. File and folder changes
  • B. Unauthorized access attempts
  • C. Malware infections
  • D. Network traffic
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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