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

Lpi 303-300日本語 Actual PDF
  • Exam Code: 303-300-JPN
  • Exam Name: LPIC Exam 303: Security, version 3.0 (303-300日本語版)
  • Updated: Sep 02, 2026
  • Q & A: 163 Questions and Answers
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Lpi 303-300日本語 Exam Syllabus Topics:

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

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. setsebool
B. restorecon
C. chcon
D. semanage


Question 2

nftables コマンドのうち、現在アクティブなルールセット(すべてのテーブル、チェーン、ルールを含む)を表示するコマンドはどれですか?

A. nft get rules
B. nft dump chains
C. nft list ruleset
D. nft show tables


Question 3

Kerberos 構成ファイル krb5.conf 内で許可されるセクションは次のどれですか?
(正しい答えを3つ選んでください。)

A. [plugins]
B. [crypto]
C. [realms]
D. [capaths]
E. [domain]


Question 4

次のスタンザのうち、FreeRADIUS の有効なクライアント構成はどれですか?

A. client private-network-1 {
ip = 192.0.2.0/24
password = testing123-1
}
B. client private-network-1 {
ipaddr = 192.0.2.0/24
password = testing123-1
}
C. client private-network-1 {
ip = 192.0.2.0/24
passwd = testing123-1
}
D. client private-network-1 {
ip = 192.0.2.0/24
secret = testing123-1
}
E. client private-network-1 {
ipaddr = 192.0.2.0/24
secret = testing123-1
}


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. 特定のユーザーまたは組織を標的とした攻撃
C. 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
D. 機密情報を盗むことを目的とした攻撃


Solutions:

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

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