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Lpi 303-300 Exam Syllabus Topics:

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

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q20-Q25):

NEW QUESTION # 20
What is the difference between a SetUID and SetGID bit?

Answer: D


NEW QUESTION # 21
What happens when the command getfattr afile is run while the file afile has no extended attributes set?

Answer: D


NEW QUESTION # 22
Which PAM module is used to enforce password complexity requirements, such as minimum length and character class requirements?

Answer: C

Explanation:
The pam_pwquality module (the modern successor to the older pam_cracklib) is used to enforce password quality and complexity requirements, such as minimum length, required character classes, and checks against dictionary words. pam_unix handles standard Unix password authentication and hashing but not complexity enforcement itself. pam_limits enforces resource limits like the maximum number of open files or processes for a user, and pam_access controls login access based on user, host, or service criteria.


NEW QUESTION # 23
Which Fail2ban configuration file typically contains local, site-specific overrides that should not be modified in the default jail.conf file?

Answer: A

Explanation:
Fail2ban's documentation recommends placing local, site-specific configuration overrides in jail.local (or files within jail.d/) rather than directly editing jail.conf, since jail.conf may be overwritten during package upgrades. Settings in jail.local take precedence over those in jail.conf.
The filter.d/ and action.d/ directories contain definitions for how to detect failures in specific log formats and how to execute a ban action, respectively, and are typically only edited when creating custom filters or actions.


NEW QUESTION # 24
Which of the following methods can be used to deactivate a rule in Snort? (Choose TWO correct answers.)

Answer: A,D


NEW QUESTION # 25
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