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

Lpi 303-300日本語 exam
  • Exam Code: 303-300-JPN
  • Exam Name: LPIC Exam 303: Security, version 3.0 (303-300日本語版)
  • Updated: Aug 04, 2026
  • Q & A: 163 Questions and Answers
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Lpi 303-300日本語 Exam Syllabus Topics:

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

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

1. どのDNSラベルが、HTTPS接続のセキュリティ保護に使用されるDANE情報を指すか
https://www.example.com/?

A) dane.www.example.com
B) _443_tcp.www.example.com
C) example.com
D) soa.example.com
E) www.example.com


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) ネットワークホストのDNS解決を実行します。
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) 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。
D) 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。


3. GnuPGの鍵ペアを対話的に生成するには、どのコマンドを使用しますか?

A) gpg --list-keys
B) gpg --export
C) gpg --gen-key
D) gpg --encrypt


4. HID はどのような種類のアクティビティを監視しますか?

A) ファイルとフォルダの変更
B) マルウェア感染
C) 不正アクセスの試み
D) ネットワークトラフィック


5. 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_access
B) pam_limits
C) pam_unix
D) pam_cracklib または pam_pwquality


Solutions:

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

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