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Lpi 303-300 Exam Syllabus Topics:

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

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

1. What is the purpose of DNS over TLS and DNS over HTTPS?

A) To improve DNS performance
B) To provide secure communication between DNS clients and servers
C) To reduce DNS query times
D) To allow DNS servers to communicate securely with each other


2. What is the purpose of an extended attribute in Linux?

A) To mark a file as executable
B) To encrypt a file for secure transmission
C) To compress a file to save disk space
D) To store additional metadata about a file


3. Which of the following configuration options makes Apache HTTPD require a client certificate for authentication?

A) SSLPolicy valid-client-cert
B) SSLVerifyClient require
C) Limit valid-x509
D) Require valid-x509
E) SSLRequestClientCert always


4. What is the purpose of a Certificate Revocation List (CRL)?

A) It replaces the need for certificate expiration dates.
B) It lists certificates that have been revoked by the issuing CA before their expiration date.
C) It lists certificates that have not yet been issued.
D) It lists all valid certificates currently trusted by a client.


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

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


Solutions:

Question # 1
Answer: B
Question # 2
Answer: D
Question # 3
Answer: B
Question # 4
Answer: B
Question # 5
Answer: D

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