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Updated: Oct 13, 2026
No. of Questions: 163 Questions & Answers with Testing Engine
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Lpi 303-300日本語 Exam Overview:
| Certification Vendor: | Linux Professional Institute (LPI) |
|---|---|
| Exam Name: | LPIC-3 Exam 303: Security (Version 3.0) |
| Exam Number: | 303-300 |
| Certificate Validity Period: | 5 years |
| Exam Duration: | 90 minutes |
| Exam Price: | Approx. 200 USD (varies by region) |
| Available Languages: | Portuguese, English, Japanese, Spanish, German |
| Passing Score: | 500/800 |
| Real Exam Qty: | Approximately 60 |
| Related Certifications: | LPIC-2 LPIC-1 LPIC-3 Virtualization and Containerization LPIC-3 Mixed Environments |
| Exam Format: | Fill in the blank, Multiple choice |
| Recommended Training: | LPI Official Training Linux Academy / A Cloud Guru LPIC-3 Security Courses |
| Exam Registration: | Pearson VUE Registration LPI Official Certification Portal |
| Sample Questions: | Lpi 303-300日本語 Sample Questions |
| Exam Way: | Available via Pearson VUE test centers and online proctored exam delivery. |
| Pre Condition: | Valid LPIC-2 certification is required before earning LPIC-3 certification. |
| Official Syllabus URL: | https://www.lpi.org/our-certifications/lpic-3-303-security-3-0 |
Lpi 303-300日本語 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Cryptography | - Data encryption and signing - OpenSSL usage and configuration - Public key infrastructure (PKI) |
| Security Administration | - System hardening - Authentication mechanisms |
| Vulnerability Assessment and Monitoring | - Intrusion detection systems (IDS) - Log analysis and auditing |
| Network Security | - Secure network services - Firewalls (iptables, nftables) - VPN technologies |
| Application Security | - Secure software configuration - Container and service security |
| Access Control | - SELinux and AppArmor - Discretionary Access Control (DAC) - Mandatory Access Control (MAC) |
Lpi LPIC Exam 303: Security, version 3.0 (303-300日本語版) Sample Questions:
OCSP ステープルとは何ですか?
- A. 特定の認証局によって発行されたすべての証明書の失効ステータスの証明をサーバーが提供できるようにするメカニズム
- B. サーバーが自身のIDの証明をクライアントに提供できるようにするメカニズム
- C. サーバーがクライアントの身元の証明を他のサーバーに提供できるようにするメカニズム
- D. サーバーが自身のSSL/TLS証明書の失効ステータスの証明を提供できるメカニズム
Correct Answer: D 🗳️
DNS over TLS と DNS over HTTPS の目的は何ですか?
- A. DNSパフォーマンスを向上させるため
- B. DNSサーバーが互いに安全に通信できるようにする
- C. DNSクライアントとサーバー間の安全な通信を提供する
- D. DNSクエリ時間を短縮するため
Correct Answer: C 🗳️
AppArmor と SELinux の違いは次のどれですか?
（正しい答えを2つ選んでください）
- A. AppArmor では、特定の設定は必要とされず、許可もされません。SELinux は常に手動で設定する必要があります。
- B. AppArmor はユーザー空間でのみ実装されます。SELinux は Linux カーネル モジュールです。
- C. SELinux 設定は起動時に読み込まれ、後で変更することはできません。AppArmor は、その動作を変更するためのユーザー空間ツールを提供します。
- D. AppArmor は SELinux よりも複雑ではなく、設定も簡単です。
- E. SELinux は拡張ファイル属性に情報を保存します。AppArmor はファイル固有の情報と状態を維持しません。
Correct Answer: D,E 🗳️
証明書失効リスト (CRL) とは何ですか?
- A. 侵害された秘密鍵のリスト
- B. 侵害された公開鍵のリスト
- C. 特定の CA によって発行された X.509 証明書のリスト
- D. 特定の CA によって失効された X.509 証明書のリスト
Correct Answer: D 🗳️
AppArmorプロファイルにおいて、「苦情」モードはどのような機能を持つのでしょうか？
- A. 観察された行動に基づいて新しいプロファイルを自動的に生成します。
- B. SELinuxのパーミッシブモードと同様に、制限を強制することなくポリシー違反をログに記録します。
- C. その特定のプロファイルのみAppArmorを無効にします。
- D. すべての制限された操作をブロックし、プロセスを終了します。
Correct Answer: B 🗳️
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