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

303-300日本語 testking pdf

Exam Code: 303-300-JPN

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

Updated: Sep 03, 2026

Q & A: 163 Questions and Answers

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

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303-300日本語 exam dumps

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

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

Question 1

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. action.d/iptables.conf
B. filter.d/sshd.conf
C. jail.local
D. fail2ban.conf


Question 2

次のコマンドのうち、ユーザー usera の自動パスワード有効期限を無効にするものはどれですか?

A. chage --maxdays none usera
B. chage --lastday 0 usera
C. chage --maxdays -1 usera
D. chage --maxdays 99 usera
E. chage --lastday none usera


Question 3

次のどの構成オプションにより、Apache HTTPD は認証にクライアント証明書を必要とするでしょうか?

A. valid-x509 が必要
B. SSLPolicy 有効なクライアント証明書
C. 制限有効-x509
D. SSLVerifyClient が必要
E. SSLRequestClientCert は常に


Question 4

次のコマンドのうち、SSSD のローカル サービスを使用してユーザーを追加するものはどれですか?

A. sss_local_adduser
B. sss_useradd
C. sss-addlocaluser
D. sss_adduser
E. sss_add


Question 5

次のどれが HID を使用する利点ではありませんか?

A. セキュリティインシデントのリアルタイム検出を提供します
B. セキュリティインシデントに迅速に対応できます
C. 検出された脅威を自動的に削除します
D. セキュリティインシデントの発生を防ぐのに役立ちます


Solutions:

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

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