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

303-300日本語 real exams

Exam Code: 303-300-JPN

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

Updated: Oct 24, 2026

Q & A: 163 Questions and Answers

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Lpi 303-300日本語 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Cryptography17%- Encrypted File Systems
- X.509 Certificates and Public Key Infrastructures
- X.509 Certificates for Encryption, Signing and Authentication
- DNS and Cryptography
Topic 2: Network Security17%- Network Hardening
- Virtual Private Networks
- Network Intrusion Detection
- Packet Filtering
Topic 3: Host Security13%- Resource Control
- Host Intrusion Detection
- Host Hardening
Topic 4: Access Control8%- Discretionary Access Control
- Mandatory Access Control
Topic 5: Threats and Vulnerability Assessment5%- Common Security Vulnerabilities and Threats
- Penetration Testing

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

Question #1
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. ゾーンを指す DS レコード。
B. A、AAAA、MX などの非 DNSSEC レコード。
C. ゾーンのゾーン署名キー。
D. ゾーンの NSEC または NSEC3 レコード。
E. ゾーンの RRSIG レコード。


Question #2
認証局 (CA) の目的は何ですか?

A. X.509証明書を暗号化する
B. X.509証明書を復号化する
C. X.509証明書を保存する
D. X.509証明書を発行し署名する


Question #3
OpenSSLのどのコマンドを使えば、新しいRSA秘密鍵とそれに対応する証明書署名要求(CSR)を一度に生成できますか?

A. openssl ca -in req.csr
B. openssl genpkey -algorithm RSA
C. openssl x509 -req -in key.pem
D. openssl req -new -newkey rsa:2048 -keyout key.pem -out req.csr


Question #4
監視対象となるシステムコールやファイルを制御する監査ルールを定義するために使用されるauditd設定ファイルはどれですか?

A. /var/log/audit/audit.log
B. /etc/audisp/audispd.conf
C. /etc/audit/rules.d/audit.rules
D. /etc/audit/auditd.conf


Question #5
暗号文とは何ですか?

A. 暗号化前の元のメッセージ
B. メッセージを暗号化するために使用されるキー
C. メッセージを暗号化するために使用されるアルゴリズム
D. 暗号化されたメッセージ


Solutions:

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

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