303-300 Valid Exam Prep - Dump 303-300 Check

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Lpi 303-300 Exam Syllabus Topics:

SectionObjectives
Topic 1: Vulnerability Assessment and Monitoring- Intrusion detection systems (IDS)
- Log analysis and auditing
Topic 2: Application Security- Secure software configuration
- Container and service security
Topic 3: Security Administration- Authentication mechanisms
- System hardening
Topic 4: Cryptography- Data encryption and signing
- OpenSSL usage and configuration
- Public key infrastructure (PKI)
Topic 5: Network Security- Secure network services
- VPN technologies
- Firewalls (iptables, nftables)
Topic 6: Access Control- Mandatory Access Control (MAC)
- SELinux and AppArmor
- Discretionary Access Control (DAC)

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Free PDF 2026 303-300: High Pass-Rate LPIC Exam 303: Security, version 3.0 Valid Exam Prep

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q81-Q86):

NEW QUESTION # 81
Which command-line tool is commonly used to test and verify TLS/SSL configuration and certificate details of a remote server?

Answer: C

Explanation:
The "openssl s_client" command connects to a remote server using TLS/SSL and displays detailed information about the negotiated protocol version, cipher suite, and the server's certificate chain, making it a common tool for troubleshooting and verifying HTTPS or other TLS- secured services. nmap's version detection can identify running services but does not provide the same depth of TLS handshake detail, tcpdump captures raw packets, and ss displays socket statistics rather than TLS-layer details.


NEW QUESTION # 82
What is the purpose of rkhunter?

Answer: D


NEW QUESTION # 83
Which command displays currently listening TCP and UDP sockets along with the process ID and name of the associated program?

Answer: D

Explanation:
The command "ss -tulnp" displays currently listening TCP (-t) and UDP (-u) sockets (-l), showing numeric addresses and ports (-n) along with the process ID and name of the program holding each socket open (-p), which requires appropriate privileges to view processes owned by other users. This is useful for auditing which services are actively listening on a system and identifying unexpected or unauthorized listening services. ping, traceroute, and dig are used for connectivity testing, path tracing, and DNS lookups respectively, not for enumerating local listening sockets.


NEW QUESTION # 84
Which SELinux mode logs policy violations without actually enforcing the policy?

Answer: A

Explanation:
In Permissive mode, SELinux evaluates access requests against the loaded policy and logs any actions that would have been denied, but it does not actually block them. This mode is useful for troubleshooting and policy development, allowing an administrator to review the audit log for potential AVC denials before switching to Enforcing mode, in which violations are actively blocked. Disabled mode turns SELinux off entirely, and Targeted is not a mode but rather a type of policy that only confines specific processes.


NEW QUESTION # 85
Which of the following DNS record types can the command dnssec-signzone add to a zone?
(Choose THREE correct answers.)

Answer: B,D,E


NEW QUESTION # 86
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