Lpi 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: Aug 03, 2026     Q & A: 163 Questions and Answers

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Lpi 303-300日本語 Exam Syllabus Topics:

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

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

1. サイト間VPNゲートウェイで一般的に使用される、ヘッダーを含む元のIPパケット全体をカプセル化して保護するIPsecモードはどれですか?

A) 攻撃モード
B) トンネルモード
C) 輸送モード
D) メインモード


2. SnortやSuricataなどの侵入検知システム(IDS)がネットワークベースモードで動作する場合、その主な機能は何ですか?

A) 悪意のあるトラフィックが宛先に到達する前に積極的にブロックします。
B) ホスト間のネットワークトラフィックを暗号化します。
C) ネットワークトラフィックをパッシブに監視し、シグネチャまたは異常ベースの検出ルールに基づいてアラートを生成します。
D) ネットワークホストのDNS解決を実行します。


3. X.509 証明書を送信するために一般的に使用されるプロトコルはどれですか?

A) LDAP
B) HTTPS
C) FTPS
D) SMTPS


4. 次のどれが動作ベースの HID 技術の例ですか?

A) 異常ベースの検出
B) シグネチャベースの検出
C) ルールベースの検出
D) ヒューリスティックベースの検出


5. ユーザーがファイルを削除できる権限ビットはどれですか?

A) 書く
B) 読む
C) UIDの設定
D) 実行


Solutions:

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

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