Lpi 303-300日本語 Exam : LPIC Exam 303: Security, version 3.0 (303-300日本語版)

303-300日本語
  • Exam Code: 303-300-JPN
  • Exam Name: LPIC Exam 303: Security, version 3.0 (303-300日本語版)
  • Updated: Jul 28, 2026
  • Q & A: 163 Questions and Answers

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Lpi 303-300日本語 Exam Syllabus Topics:

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

Lpi LPIC Exam 303: Security, version 3.0 (303-300日本語版) Sample Questions:

1. Linux システムにおけるファイル所有権の目的は何ですか?

A) ファイルが誤って削除されるのを防ぐため
B) 複数のユーザーが同時にファイルにアクセスできるようにする
C) ファイルが定期的にバックアップされるようにする
D) ファイルへのアクセスを所有者のみに制限する


2. どのSELinuxモードが、ポリシー違反をログに記録するものの、実際にポリシーを適用することはありませんか?

A) 強制する
B) 寛容
C) ターゲット
D) 無効


3. パスワードの最小文字数や文字クラスなどの複雑性要件を適用するために使用されるPAMモジュールはどれですか?

A) pam_unix
B) pam_cracklib または pam_pwquality
C) pam_limits
D) pam_access


4. 次の認証方法のうち、NFS バージョン 4 に追加されたのはどれですか?

A) Winbind認証
B) SSL証明書認証
C) Kerberos認証
D) SSHホストキー認証


5. Linux システムにインストールされたファイルの整合性を検証するために使用できるパッケージ管理ツールはどれですか?

A) yum と zypper
B) APT と YUM
C) RPM と DPKG
D) dpkg と aptitude


Solutions:

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

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