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Lpi 303-300 Exam Syllabus Topics:

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

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

Question 1

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. fail2ban.conf
C. jail.local
D. filter.d/sshd.conf


Question 2

What is phishing?

A. A type of virus
B. A type of denial-of-service attack
C. A type of malware that disguises itself as legitimate software
D. A type of social engineering attack


Question 3

What is a honeypot?

A. A type of phishing scam
B. A type of virus
C. A type of denial-of-service attack
D. A network security tool designed to lure attackers into a trap


Question 4

A LUKS device was mapped using the command: cryptsetup luksOpen/dev/sda1 crypt-vol Given that this device has three different keys, which of the following commands deletes only the first key?

A. cryptsetup luksDelKey /dev/sda 1 0
B. cryptsetup luksDelKey / dev /mapper/crypt- vol 0
C. cryptsetup luksDelKey / dev /mapper/crypt- vol 1
D. cryptsetup luksDelkey /dev/sda 1 1


Question 5

What is the purpose of the GnuPG "trust level" assigned to a key, as opposed to a signature on that key?

A. It indicates how much the owner trusts that key's holder to properly verify and sign other people's keys.
B. It determines the key's expiration date.
C. It is identical in meaning to a key signature and is redundant.
D. It indicates how strongly the key's authenticity has been verified.


Solutions:

Question 1
Answer: C
Question 2
Answer: D
Question 3
Answer: D
Question 4
Answer: D
Question 5
Answer: A

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