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

303-300日本語
  • Exam Code: 303-300-JPN
  • Exam Name: LPIC Exam 303: Security, version 3.0 (303-300日本語版)
  • Updated: Aug 04, 2026
  • Q & A: 163 Questions and Answers
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Lpi 303-300日本語 Exam Syllabus Topics:

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

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

1. LUKSキースロットの目的は何ですか?

A) 冗長性のために暗号化されたデータのコピーを保存します。
B) マスターキーの暗号化されたコピーを保存し、特定のパスフレーズまたはキーファイルで保護することで、複数の独立したロック解除方法を可能にします。
C) 暗号化ボリュームで使用されるファイルシステムの種類を定義します。
D) デバイスのUUIDを保存します。


2. openssl s_client の次のパラメータのうち、TLS サーバー名表示に使用するホスト名を指定するものはどれですか?

A) -sniname
B) -tlsname
C) -vhost
D) -servername
E) -host


3. Linux 監査システム内で指定できるのは次のどのタイプですか?
(正しい答えを3つ選んでください。)

A) ネットワーク接続ルール
B) ファイルシステムのルール
C) システムコールルール
D) 制御ルール
E) コンソールルール


4. DNSSEC 署名ゾーン内の次の情報のうち、キー署名キーによって署名されるものはどれですか?

A) A、AAAA、MX などの非 DNSSEC レコード。
B) ゾーンのゾーン署名キー。
C) ゾーンの NSEC または NSEC3 レコード。
D) ゾーンの RRSIG レコード。
E) ゾーンを指す DS レコード。


5. どのDNSラベルが、HTTPS接続のセキュリティ保護に使用されるDANE情報を指すか
https://www.example.com/?

A) www.example.com
B) soa.example.com
C) _443_tcp.www.example.com
D) dane.www.example.com
E) example.com


Solutions:

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

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