Lpi 303-300 test insides dumps : LPIC Exam 303: Security, version 3.0

Lpi 303-300 test insides dumps
  • Exam Code: 303-300
  • Exam Name: LPIC Exam 303: Security, version 3.0
  • Updated: Aug 22, 2026
  • Q & A: 163 Questions and Answers
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Lpi 303-300 Exam Syllabus Topics:

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

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

1. Which of the following commands adds a new user usera to FreeIPA?

A) useradd usera --directory ipa --gecos "User A"
B) ipa user-add usera --first User --last A
C) ipa-admin create user --account usera --fname User --iname A
D) idap- useradd -H Idaps://ipa-server CN=UserA --attribs "Firstname: User: Lastname: A"
E) ipa-user- add usera --name "User A"


2. Which of the following prefixes could be present in the output of getcifsacl? (Choose THREE correct answers.)

A) SID
B) GRANT
C) OWNER
D) GROUP
E) ACL


3. What is Cryptography?

A) The art of decoding messages
B) The art of sending anonymous messages
C) The art of sending public messages
D) The art of sending secret messages


4. Which directive is used in an OpenVPN server configuration in order to send network configuration information to the client? (Specify ONLY the option name without any values or parameters.) Solution: push Determine whether the given solution is correct?

A) Correct
B) Incorrect


5. What is phishing?

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


Solutions:

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

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