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

303-300日本語 real exams

Exam Code: 303-300-JPN

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

Updated: Sep 16, 2026

Q & A: 163 Questions and Answers

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Lpi 303-300日本語 Exam Syllabus Topics:

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

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

Question #1

不正アクセス ポイントとは何ですか?

  • A. ウイルスの一種
  • B. 正規のアクセスポイントのように見える不正なアクセスポイント
  • C. フィッシング詐欺の一種
  • D. 正しく構成されていない正当なアクセスポイント
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #2

Linux システムでルートキットをチェックするにはどのツールを使用できますか?

  • A. chkrootkit
  • B. OpenSCAP
  • C. 回転数
  • D. 補佐官
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #3

DNS over TLS と DNS over HTTPS の目的は何ですか?

  • A. DNSクライアントとサーバー間の安全な通信を提供する
  • B. DNSクエリ時間を短縮するため
  • C. DNSサーバーが互いに安全に通信できるようにする
  • D. DNSパフォーマンスを向上させるため
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #4

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 --encrypt
  • B. gpg --list-keys
  • C. gpg --export
  • D. gpg --gen-key
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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Question #5

平文とは何ですか?

  • A. 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
  • 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. 暗号化前の元のメッセージ
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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