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

Updated: Aug 31, 2026

Q & A: 163 Questions and Answers

303-300日本語 Braindumps VCE
  • Exam Code: 303-300-JPN
  • Exam Name: LPIC Exam 303: Security, version 3.0 (303-300日本語版)

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Lpi 303-300日本語 Exam Syllabus Topics:

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

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

Question 1

暗号文とは何ですか?

A. メッセージを暗号化するために使用されるキー
B. メッセージを暗号化するために使用されるアルゴリズム
C. 暗号化されたメッセージ
D. 暗号化前の元のメッセージ


Question 2

Linux監査フレームワークにおいて、「ausearch」コマンドの目的は何ですか?

A. auditdサービスを再起動します。
B. キー、ユーザー、期間などの基準に基づいて、既存の監査ログエントリを検索およびフィルタリングします。
C. 実行中のカーネルに新しい監査ルールを追加します。
D. 監査統計の要約レポートを作成する。


Question 3

HID を実装するためのベスト プラクティスは次のどれですか。

A. 潜在的なセキュリティインシデントをセキュリティ担当者に警告するように HID を構成する
B. HIDを設定してすべての着信トラフィックをブロックする
C. セキュリティインシデントを積極的に監視していない場合は HID を無効にする
D. ネットワーク内のすべてのコンピュータにHIDをインストールする


Question 4

次のデータベース名のうち、ネーム サービス スイッチ (NSS) 構成ファイル内で使用できるのはどれですか?(正しい回答を 3 つ選択してください)。

A. shadow
B. group
C. passwd
D. service
E. host


Question 5

権限昇格とは何ですか?

A. 脆弱性を悪用して権限を昇格させる攻撃
B. 機密情報を盗むことを目的とした攻撃
C. 特定のユーザーまたは組織を標的とした攻撃
D. 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


Solutions:

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

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