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Lpi 303-300 Exam Syllabus Topics:

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

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q10-Q15):

NEW QUESTION # 10
In nftables, what is the purpose of a "base chain" as opposed to a "regular chain"?

A. A base chain can only contain accept rules.
B. A base chain is directly attached to a netfilter hook, such as input or forward, allowing it to receive packets from the kernel.
C. A base chain is used only for NAT rules.
D. There is no functional difference between base and regular chains.

Answer: B

Explanation:
A base chain in nftables is attached directly to one of the underlying netfilter hooks (such as prerouting, input, forward, output, or postrouting), which allows packets traversing the network stack at that point to be evaluated against the chain's rules. A regular chain, by contrast, is not attached to any hook and can only be reached when explicitly called (jumped or goto'd) from another chain, functioning similarly to a subroutine used for rule organization.

NEW QUESTION # 11
When OpenVPN sends a control packet to its peer, it expects an acknowledgement in 2 seconds by default. Which of the following options changes the timeout period to 5 seconds?

A. -- tls- timer 5
B. -- tls- timer 500
C. -- tls-timeout 5
D. -- tls- timeout 500

Answer: C

NEW QUESTION # 12
Which option of the openvpn command should be used to ensure that ephemeral keys are not written to the swap space?

A. --no-swap
B. --mlock
C. --root-swap
D. --keys-no-swap

Answer: B

NEW QUESTION # 13
Which of the following practices are important for the security of private keys?
(Choose TWO correct answers.)

A. Private keys should be included in X509 certificates.
B. Private keys should always be stored as plain text files without any encryption.
C. Private keys should be uploaded to public key servers.
D. Private keys should have a sufficient length for the algorithm used for key generation.
E. Private keys should be created on the systems where they will be used and should never leave them.

Answer: A,D

NEW QUESTION # 14
Which tool can be used to manage the Linux Audit system?

A. chkrootkit
B. rkhunter
C. maldet
D. auditd

Answer: D

NEW QUESTION # 15
......

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