Study with Lpi : 303-300日本語 Exam Torrent as your best preparation materials

Last Updated: Jul 25, 2026

No. of Questions: 163 Questions & Answers with Testing Engine

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Lpi 303-300日本語 Exam Syllabus Topics:

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

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

1. 非対称キーとは何ですか?

A) 暗号化と復号化の両方に使用されるキーで、ペアで生成される
B) 暗号化と復号化に同じ鍵を使用する
C) 暗号化に使用されるキーと復号化に使用されるキーが異なる
D) 暗号化に使用されたキーとは異なる復号化に使用されるキー


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


3. Linux におけるアクセス制御リストの目的は何ですか?

A) ファイルを安全に転送するために暗号化する
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) 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
D) ファイルを実行可能としてマークする


4. コンテナランタイムやサンドボックスツールが攻撃対象領域を縮小するためによく使用する、プロセスによるシステムコールへのアクセスを制限するLinuxカーネル機能はどれですか?

A) cgroups
B) 名前空間
C) seccomp
D) 能力


5. BIND に含まれるどのコマンドが DNSSEC キーを生成しますか?
(パスやパラメータなしでコマンドのみを指定します。)
解決策: dnssec-keygen
与えられた解決策が正しいかどうかを判断します。

A) 正解
B) .偽


Solutions:

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

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