Free PDF Quiz 2026 303-300 - New LPIC Exam 303: Security, version 3.0 Dumps Pdf

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Lpi 303-300 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Threats and Vulnerability Assessment	5%	- Common Security Vulnerabilities and Threats - Penetration Testing
Topic 2: Host Security	13%	- Host Hardening - Resource Control - Host Intrusion Detection
Topic 3: Access Control	8%	- Discretionary Access Control - Mandatory Access Control
Topic 4: Cryptography	17%	- X.509 Certificates and Public Key Infrastructures - Encrypted File Systems - DNS and Cryptography - X.509 Certificates for Encryption, Signing and Authentication
Topic 5: Network Security	17%	- Packet Filtering - Network Hardening - Virtual Private Networks - Network Intrusion Detection

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q18-Q23):

NEW QUESTION # 18
Which of the following expressions are valid AIDE rules?
(Choose TWO correct answers.)

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

Answer: C,D

NEW QUESTION # 19
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. subjectAltName = DNS: www.example.org, DNS:example.org
B. subject= CN= www.example.org, CN=example.org
C. subjectAltName: www.example.org, subjectAltName: example.org
D. extension= SAN: www.example.org, SAN:example.org
E. commonName = subjectAltName= www.example.org, subjectAltName = example.org

Answer: A

NEW QUESTION # 20
Which Linux kernel feature restricts a process's access to a subset of system calls, commonly used by container runtimes and sandboxing tools to reduce attack surface?

A. seccomp
B. namespaces
C. cgroups
D. capabilities

Answer: A

Explanation:
Secure Computing Mode (seccomp) is a Linux kernel feature that allows a process to restrict the set of system calls it is permitted to make, typically by loading a filter (often defined using BPF) that allows, denies, or traps specific syscalls. This significantly reduces a process's attack surface by preventing it from invoking syscalls it does not need, and is widely used by container runtimes like Docker and by sandboxing frameworks. cgroups control resource usage, namespaces provide isolated views of system resources, and capabilities divide root privileges into discrete units.

NEW QUESTION # 21
Which command is used to run a new shell for a user changing the SELinux context?
(Specify ONLY the command without any path or parameters.)
Solution: newrole
Determine whether the given solution is correct?

A. Incorrect
B. Correct

Answer: B

NEW QUESTION # 22
Which of the following expressions are valid AIDE rules? (Choose TWO correct answers.)

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

Answer: C,D

NEW QUESTION # 23
......

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