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Exam Code: 303-300-JPN

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

Updated: Sep 05, 2026

Number: 163 Q&As with Testing Engine

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Lpi 303-300日本語 Exam Syllabus Topics:
SectionWeightObjectives
Topic 1: 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
- Packet Filtering
  • 1. IP sets
  • 2. NAT and connection tracking
  • 3. iptables and ip6tables
  • 4. nftables awareness
- Virtual Private Networks
  • 1. IPsec and strongSwan
  • 2. WireGuard
  • 3. OpenVPN
Topic 2: Host Security9%- Host Hardening
  • 1. Service hardening
  • 2. Kernel runtime protection
  • 3. Secure boot process
- Resource Control
  • 1. Process resource management
  • 2. ulimits
  • 3. cgroups
- Host Intrusion Detection
  • 1. AIDE integrity checking
  • 2. Rootkit detection tools
  • 3. Linux Audit system
  • 4. Malware detection
Topic 3: Cryptography8%- OpenPGP
  • 1. Manage GnuPG keys
  • 2. Web of trust concepts
  • 3. Sign and encrypt data
- X.509 Certificates and Public Key Infrastructures
  • 1. Manage certificate authorities
  • 2. Create and manage certificates
  • 3. Certificate revocation and validation
- Data Encryption
  • 1. Secure data transmission
  • 2. Encrypt files and storage devices
  • 3. Use LUKS and dm-crypt
Topic 4: Access Control8%- Discretionary Access Control
  • 1. Extended attributes
  • 2. POSIX ACLs
  • 3. File permissions
- Authentication and Authorization
  • 1. Centralized authentication
  • 2. PAM
  • 3. Multi-factor authentication
- Mandatory Access Control
  • 1. AppArmor configuration
  • 2. Policy enforcement
  • 3. SELinux management
Topic 5: Threats and Vulnerability Assessment3%- Vulnerability Assessment
  • 1. OpenVAS
  • 2. Risk identification
  • 3. Security scanning
- Threat Analysis
  • 1. Credential and confidentiality threats
  • 2. Application threats
  • 3. Network threats
  • 4. Host-based threats
Lpi LPIC Exam 303: Security, version 3.0 (303-300日本語版) Sample Questions:

Question 1

次の DNS レコードのうち、IP アドレスをホスト名にマッピングするために使用されるものはどれですか?

A. NS
B. SOA
C. PTR
D. A


Question 2

どの権限ビットがファイルの実行を許可しますか?

A. 書く
B. 実行
C. UIDの設定
D. 読む


Question 3

Suricataにおいて、emerging-threats.rulesコレクションに含まれるような「ルール」ファイルの目的は何ですか?

A. Suricata管理インターフェースのユーザー認証ポリシーを定義します。
B. ファイアウォールのNAT変換ルールを定義します。
C. Suricataが監視するネットワークインターフェースを設定します。
D. 特定の種類の悪意のある、または疑わしいネットワークトラフィックを検出するために使用されるシグネチャと条件を定義します。


Question 4

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. FTPS
B. SMTPS
C. HTTPS
D. LDAP


Question 5

Fail2banの主な目的は何ですか?

A. ディスクに保存されているログファイルを暗号化します。
B. ユーザーアカウント用の強力なランダムパスワードを生成します。
C. ファイアウォールの必要性を完全に排除する。
D. ログファイルを監視し、認証失敗の繰り返しを検出し、ファイアウォールルールを使用して問題のあるIPアドレスを動的にブロックします。


Solutions:

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

303-300-JPN Related Exams
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303-200 - 303-200: LPIC-3 Exam 303: Security, version 2.0
305-300 - LPIC-3 Exam 305: Virtualization and Containerization
303-200J - 303-200: LPIC-3 Exam 303: Security, version 2.0 (303-200日本語版)
303-300日本語 - LPIC Exam 303: Security, version 3.0 (303-300日本語版)
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