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

  • Exam Code: 303-300日本語
  • Exam Name: LPIC Exam 303: Security, version 3.0 (303-300日本語版)
  • Updated: Sep 07, 2026     Q & A: 163 Questions and Answers

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Lpi 303-300日本語 Exam Syllabus Topics:

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

Linux でファイルの権限を設定するために使用されるコマンドはどれですか?

A. チャウン
B. グループチェンジ
C. 設定ファクル
D. chmod


Question 2

sysctl コマンドで変更できるデータはどのパスからアクセスできますか?

A. /sys/
B. /sysctl/
C. /dev/sys/
D. /proc/sys/


Question 3

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. 能力
B. seccomp
C. 名前空間
D. cgroups


Question 4

次のどれが HID を使用する利点ではありませんか?

A. セキュリティインシデントの発生を防ぐのに役立ちます
B. セキュリティインシデントに迅速に対応できます
C. 検出された脅威を自動的に削除します
D. セキュリティインシデントのリアルタイム検出を提供します


Question 5

リモートサーバーのTLS/SSL構成と証明書の詳細をテストおよび検証するために一般的に使用されるコマンドラインツールはどれですか?

A. nmap -sV
B. ss -tlnp
C. tcpdump
D. openssl s_client


Solutions:

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

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