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

303-300日本語 actual test
  • Exam Code: 303-300-JPN
  • Exam Name: LPIC Exam 303: Security, version 3.0 (303-300日本語版)
  • Updated: Sep 14, 2026
  • Q & A: 163 Questions and Answers
  • PDF Demo
  • PC Test Engine
  • Online Test Engine
  • Total Price: $69.99  

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Lpi 303-300日本語 Exam Syllabus Topics:

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

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

Question #1

シェルとその子プロセスの次のリソースのうち、Bash 組み込みコマンド ulimit によって制御できるものはどれですか。
(正しい答えを3つ選んでください。)

  • A. 書き込まれるファイルの最大サイズ
  • B. 開いているファイル記述子の最大数
  • C. 新規に作成されるファイルの最大数
  • D. 環境変数の最大数
  • E. ユーザープロセスの最大数
Reveal Solution  Discussion  0

Correct Answer: A,B,E  🗳️

Question #2

Fail2banの設定ファイルのうち、デフォルトのjail.confファイルでは変更すべきでない、ローカルなサイト固有のオーバーライド設定が含まれているのは、通常どのファイルですか?

  • A. fail2ban.conf
  • B. action.d/iptables.conf
  • C. jail.local
  • D. filter.d/sshd.conf
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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Question #3

次の記述のうち、ndpmon の目的を説明しているものはどれですか?

  • A. IPv6 にまだ移行していない IPv4 ノードのネットワークを監視します。
  • B. 新しい IPv6 ホストおよびルータからの近隣探索メッセージをネットワーク上で監視します。
  • C. ネットワーク インターフェイスを照会して、ネットワーク リンクの可用性を監視します。
  • D. 問題のあるネットワーク ノードからのトラフィックをブロックするために、失敗したログイン試行のログ ファイルを監視します。
  • E. 定期的にエコー要求を送信してリモート ホストを監視します。
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #4

現在ロードされているSELinuxポリシーに従ってファイルのラベルを変更するには、どのコマンドを使用しますか?

  • A. semanage
  • B. chcon
  • C. setsebool
  • D. restorecon
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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Question #5

暗号化とは何ですか?

  • A. 秘密のメッセージを送る技術
  • B. 匿名メッセージを送信する技術
  • C. 公的なメッセージを送信する技術
  • D. メッセージを解読する技術
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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