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 09, 2026
  • Q&As: 163 Questions and Answers

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Lpi 303-300日本語 Exam Syllabus Topics:

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

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

1. X.509 証明書とは何ですか?

A) デバイスのIDを確認するデジタル文書
B) 個人の身元を証明するデジタル文書
C) ウェブサイトの身元を証明するデジタル文書
D) 企業の身元を証明するデジタル文書


2. 一時キーがスワップ領域に書き込まれないようにするには、openvpn コマンドのどのオプションを使用する必要がありますか?

A) --keys-no-swap
B) --no-swap
C) --mlock
D) --root-swap


3. Linux における拡張属性の目的は何ですか?

A) ディスク容量を節約するためにファイルを圧縮する
B) ファイルを実行可能としてマークする
C) ファイルを安全に転送するために暗号化する
D) ファイルに関する追加のメタデータを保存する


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


5. HID を実装するためのベスト プラクティスは次のどれですか。

A) HIDを設定してすべての着信トラフィックをブロックする
B) ネットワーク内のすべてのコンピュータにHIDをインストールする
C) 潜在的なセキュリティインシデントをセキュリティ担当者に警告するように HID を構成する
D) セキュリティインシデントを積極的に監視していない場合は HID を無効にする


Solutions:

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

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