Lpi 303-300日本語 Q&A - in .pdf

  • 303-300日本語 pdf
  • Exam Code: 303-300日本語
  • Exam Name: LPIC Exam 303: Security, version 3.0 (303-300日本語版)
  • Updated: Aug 08, 2026
  • Q & A: 163 Questions and Answers
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  • Updated: Aug 08, 2026
  • Q & A: 163 Questions and Answers
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  • Exam Code: 303-300日本語
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Lpi 303-300日本語 Exam Syllabus Topics:

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

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

1. 次のコマンド ラインのうち、ntop の管理者パスワードをテスト 123 に設定するものはどれですか。

A) ntop --reset-password=testing123
B) ntop --set-password=testing123
C) ntop --set-new-password=testing123
D) ntop --set-admin-password=testing123


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) ターゲット
B) 無効
C) 強制する
D) 寛容


3. 暗号文とは何ですか?

A) 暗号化前の元のメッセージ
B) メッセージを暗号化するために使用されるキー
C) 暗号化されたメッセージ
D) メッセージを暗号化するために使用されるアルゴリズム


4. ホスト侵入検知 (HID) とは何ですか?

A) ファイルやフォルダをスキャンしてウイルスを検出するシステム
B) マルウェアがネットワークに感染するのを防ぐシステム
C) ネットワーク上の悪意のあるトラフィックを検出するシステム
D) 単一のコンピュータまたはサーバー上の潜在的なセキュリティ脅威を監視および検出するシステム


5. Linux におけるアクセス制御リストの目的は何ですか?

A) ユーザーとグループに対してきめ細かな権限を指定する
B) ディスク容量を節約するためにファイルを圧縮する
C) ファイルを安全に転送するために暗号化する
D) ファイルを実行可能としてマークする


Solutions:

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

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