2025年最新のに更新された検証済みの303-300問題集と解答で合格保証もしくは全額返金 [Q40-Q56]

2025年最新のに更新された検証済みの303-300問題集と解答で合格保証もしくは全額返金

303-300のPDF問題とテストエンジンには121問があります

Lpi 303-300 試験は、認定 Linux セキュリティプロフェッショナルになるための重要なステップです。この試験に合格することで、さまざまなネットワーク環境で Linux ベースのシステムを安全に保護するために必要なスキルと知識を証明できます。この試験に合格した候補者は、新しいキャリアの機会を開くことができ、Linux セキュリティプロフェッショナルとしての価値を示すことができます。

LPIC試験303：セキュリティ、バージョン3.0は、暗号化、アクセス制御、ネットワークセキュリティ、コンプライアンスなど、Linuxシステムのセキュリティに関連する幅広いトピックをカバーしています。この試験は、セキュリティの脅威を特定して軽減し、セキュリティポリシーを実施し、データの機密性、整合性、および可用性を確保する候補者の能力をテストするように設計されています。

 

質問 # 40
Which file is used to configure AIDE?

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

正解：C

質問 # 41
What is the purpose of TSIG in DNS?

• A. To encrypt DNS queries
• B. To provide information about DNS servers
• C. To sign DNS messages for secure communication
• D. To map a domain name to an IP address

正解：C

質問 # 42
Which of the following are differences between AppArmor and SELinux?
(Choose TWO correct answers)

• A. AppArmor is less complex and easier to configure than SELinux.
• B. The SELinux configuration is loaded at boot time and cannot be changed later on. AppArmor provides user space tools to change its behavior.
• C. SELinux stores information in extended file attributes. AppArmor does not maintain file specific information and states.
• D. AppArmor neither requires nor allows any specific configuration. SELinux must always be manually configured.
• E. AppArmor is implemented in user space only. SELinux is a Linux Kernel Module.

正解：A、C

質問 # 43
How does TSIG authenticate name servers in order to perform secured zone transfers?

• A. Both servers use DNSSEC to mutually verify that they are authoritative for the transferred zone.
• B. Both servers use a secret key that is shared between the servers.
• C. Both servers mutually verify their X509 certificates.
• D. Both servers verify appropriate DANE records for the labels of the NS records used to delegate the transferred zone.

正解：B

質問 # 44
Which of the following commands adds users using SSSD's local service?

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

正解：A

質問 # 45
Which of the following statements are true regarding the certificate of a Root CA?
(Choose THREE correct answers.)

• A. It has an infinite lifetime and never expires.
• B. It must contain an X509v3 Authority extension.
• C. It is a self-signed certificate.
• D. It does not include the private key of the CA.
• E. It must contain a host name as the common name.

正解：B、C、D

質問 # 46
Which command revokes ACL-based write access for groups and named users on the file afile?

• A. setfacl -x mask: : rx afile
• B. setfacl -x group: * : rx, user:*: rx afile
• C. setfacl ~m group: * : rx, user :*: rx afile
• D. setfacl ~m mask: : rx afile

正解：D

質問 # 47
What is the purpose of DNS over TLS and DNS over HTTPS?

• A. To reduce DNS query times
• B. To allow DNS servers to communicate securely with each other
• C. To provide secure communication between DNS clients and servers
• D. To improve DNS performance

正解：C

質問 # 48
Which of the following DNS records is used to map an IP address to a hostname?

• A. A
• B. SOA
• C. NS
• D. PTR

正解：D

質問 # 49
Which of the following keywords are built-in chairs for the iptables nat table?
(Choose THREE correct answers.)

• A. MASQUERADE
• B. PROCESSING
• C. OUTPUT
• D. POSTROUTING
• E. PREROUTING

正解：C、D、E

質問 # 50
Which command is used to set the owner and group of a file in Linux?

• A. chmod
• B. chgrp
• C. setfacl
• D. chown

正解：D

質問 # 51
Which of the following commands defines an audit rule that monitors read and write operations to the file/ etc/firewall/rules and associates the rule with the name firewall?

• A. auditctl -A -f /etc/firewall/rules -o r -o w -l firewall
• B. auditctl -w /etc/firewall/rules -p rw -k firewall
• C. auditctl --read /etc/firewall/rules --write /etc/firewall/rules --label firewall
• D. echo "n: firewall r:/etc/firewall/rules: w:/etc/firewall/rules:" | auditctl ~
• E. auditctl -N firewall -r r: /etc/firewall/rules -r w: etc/firewall/rules

正解：B

質問 # 52
Which option in an Apache HTTPD configuration file enables OCSP stapling?
(Specify ONLY the option name without any values or parameters.)
Solution: httpd-ssl.conf
Determine whether the given solution is correct?

• A. Incorrect
• B. Correct

正解：A

質問 # 53
Which of the following lines in an OpenSSL configuration adds an X 509v3 Subject Alternative Name extension for the host names example.org and www.example.org to a certificate?

• A. subject= CN= www.example.org, CN=example.org
• B. subjectAltName = DNS: www.example.org, DNS:example.org
• C. commonName = subjectAltName= www.example.org, subjectAltName = example.org
• D. subjectAltName: www.example.org, subjectAltName: example.org
• E. extension= SAN: www.example.org, SAN:example.org

正解：B

質問 # 54
Which of the following commands adds a new user usera to FreeIPA?

• A. ipa user-add usera --first User --last A
• B. useradd usera --directory ipa --gecos "User A"
• C. ipa-admin create user --account usera --fname User --iname A
• D. ipa-user- add usera --name "User A"
• E. idap- useradd -H Idaps://ipa-server CN=UserA --attribs "Firstname: User: Lastname: A"

正解：A

質問 # 55
Which of the following expressions are valid AIDE rules?
(Choose TWO correct answers.)

• A. !/var/run/.*
• B. append: /var/log/*
• C. /usr=all
• D. #/bin/
• E. /etc p+i+u+g

正解：A、E

質問 # 56
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