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Lpi 303-300日本語

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: Oct 11, 2026

Q&A Number: 163 Q&As

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Lpi 303-300日本語 Exam Syllabus Topics:

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

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

Question #1
LUKS デバイスは、次のコマンドを使用してマップされました: cryptsetup luksOpen/dev/sda1 crypt-vol このデバイスには 3 つの異なるキーがありますが、次のコマンドのうち最初のキーのみを削除するのはどれですか?

A. cryptsetup luksDelKey / dev /mapper/crypt- vol 0
B. cryptsetup luksDelKey /dev/sda 1 0
C. cryptsetup luksDelkey /dev/sda 1 1
D. cryptsetup luksDelKey /dev /mapper/crypt- vol 1


Question #2
rkhunter を構成するために使用されるファイルはどれですか?

A. /etc/aide/aide.conf
B. /etc/rkhunter.conf
C. /etc/maldet.conf
D. /etc/audit/auditd.conf


Question #3
GnuPGの信頼のウェブモデルにおいて、ユーザーAがユーザーBの公開鍵に署名するとはどういう意味ですか?

A. ユーザーAの秘密鍵がユーザーBと共有されました。
B. ユーザーAは、ユーザーBにユーザーAのメッセージを復号化する権限を付与します。
C. ユーザーAは、ユーザーBの公開鍵の真正性と、それがユーザーBの身元と関連付けられていることを検証したことを保証します。
D. ユーザーBのキーは自動的に取り消されました。


Question #4
次のアクセス制御モデルのうち、SELinux を使用して確立されるものはどれですか?

A. 任意アクセス制御 (DAC)
B. グループ アクセス制御 (GAC)
C. セキュリティ アクセス制御 (SAC)
D. 強制アクセス制御 (MAC)
E. ユーザー アクセス制御 (UAC)


Question #5
OpenVPN が制御パケットをピアに送信する場合、デフォルトでは 2 秒以内に確認応答が返されることを期待します。次のオプションのうち、タイムアウト期間を 5 秒に変更するものはどれですか。

A. -- tls- timeout 500
B. -- tls- timer 500
C. -- tls-timeout 5
D. -- tls- timer 5


Solutions:

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

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