Lpi 303-300日本語 Q&A - in .pdf

  • Exam Code: 303-300日本語
  • Exam Name: LPIC Exam 303: Security, version 3.0 (303-300日本語版)
  • Updated: Jul 24, 2026
  • Q & A: 163 Questions and Answers
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Lpi 303-300日本語 Q&A - Testing Engine

  • Exam Code: 303-300日本語
  • Exam Name: LPIC Exam 303: Security, version 3.0 (303-300日本語版)
  • Updated: Jul 24, 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%- Network Hardening
  • 1. Secure network services
  • 2. TCP wrappers and service restrictions
- Packet Filtering
  • 1. NAT and connection tracking
  • 2. iptables and ip6tables
  • 3. IP sets
  • 4. nftables awareness
- Network Intrusion Detection
  • 1. tcpdump
  • 2. Wireshark
  • 3. Kismet
  • 4. Snort
- Virtual Private Networks
  • 1. WireGuard
  • 2. IPsec and strongSwan
  • 3. OpenVPN
Topic 2: Access Control8%- Discretionary Access Control
  • 1. File permissions
  • 2. Extended attributes
  • 3. POSIX ACLs
- Mandatory Access Control
  • 1. Policy enforcement
  • 2. AppArmor configuration
  • 3. SELinux management
- Authentication and Authorization
  • 1. PAM
  • 2. Centralized authentication
  • 3. Multi-factor authentication
Topic 3: Host Security9%- Resource Control
  • 1. ulimits
  • 2. cgroups
  • 3. Process resource management
- Host Intrusion Detection
  • 1. Rootkit detection tools
  • 2. AIDE integrity checking
  • 3. Malware detection
  • 4. Linux Audit system
- Host Hardening
  • 1. Kernel runtime protection
  • 2. Secure boot process
  • 3. Service hardening
Topic 4: Cryptography8%- X.509 Certificates and Public Key Infrastructures
  • 1. Create and manage certificates
  • 2. Manage certificate authorities
  • 3. Certificate revocation and validation
- Data Encryption
  • 1. Use LUKS and dm-crypt
  • 2. Secure data transmission
  • 3. Encrypt files and storage devices
- OpenPGP
  • 1. Web of trust concepts
  • 2. Sign and encrypt data
  • 3. Manage GnuPG keys
Topic 5: Threats and Vulnerability Assessment3%- Vulnerability Assessment
  • 1. Security scanning
  • 2. OpenVAS
  • 3. Risk identification
- Threat Analysis
  • 1. Host-based threats
  • 2. Credential and confidentiality threats
  • 3. Application threats
  • 4. Network threats

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

1. AIDE の目的は何ですか?

A) システムログファイルを管理する
B) ホストスキャンを自動化する
C) 侵入やシステム変更を検出する
D) インストールされたパッケージを管理する


2. サーバーが所有権情報を提供しない場合に、マウントされた CIFS 共有のファイルのローカル所有者として表示されるユーザーを指定するのは、mount.cifs のどのオプションですか?
(値やパラメータなしでオプション名のみを指定します。)
解決策: uid=arg
与えられた解決策が正しいかどうかを判断します。

A) .偽
B) 正解


3. トラストアンカーとは何ですか?

A) 特定のCAによって信頼されているルート証明書
B) 特定のCAによって信頼されている秘密鍵のリスト
C) 特定のCAによって生成された鍵ペア
D) 特定のCAによって信頼されている公開鍵のリスト


4. どの権限ビットがファイルの実行を許可しますか?

A) UIDの設定
B) 書く
C) 実行
D) 読む


5. 中間者攻撃とは何ですか?

A) 特定のユーザーまたは組織を標的とした攻撃
B) 二者間の通信を傍受して情報を盗む攻撃
C) ネットワークやサーバーに大量のトラフィックを流して利用不能にする攻撃
D) 機密情報を盗むことを目的とした攻撃


Solutions:

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

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