LPIC Exam 303: Security, version 3.0 sure pass dumps & 303-300 actual training pdf

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Lpi 303-300 Exam Syllabus Topics:

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

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q147-Q152):

NEW QUESTION # 147
Which mount option prevents the execution of binaries located on the mounted filesystem?

A. nosuid
B. nodev
C. noexec
D. ro

Answer: C

NEW QUESTION # 148
Which of the following expressions are valid AIDE rules?
(Choose TWO correct answers.)

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

Answer: B,C

NEW QUESTION # 149
What is the purpose of IP sets?

A. They group together IP addresses that can be referenced by netfilter rules.
B. They group together IP addresses that are assigned to the same network interfaces.
C. They group together IP and MAC addresses used by the neighbors on the local network.
D. They group together IP addresses and networks that can be referenced by the network routing table.
E. They group together IP addresses and user names that can be referenced from /etc/hosts.allow and /etc/hosts.deny

Answer: A

NEW QUESTION # 150
Which of the following resources of a shell and its child processes can be controlled by the Bash build- in command ulimit? (Choose THREE correct answers.)

A. The maximum number of environment variables
B. The maximum number of newly created files
C. The maximum number of user processes
D. The maximum number of open file descriptors
E. The maximum size of written files

Answer: C,D,E

NEW QUESTION # 151
Which OpenVPN configuration directive specifies that the tunnel should operate at Layer 3, routing IP packets rather than bridging Ethernet frames?

A. proto udp
B. topology subnet
C. dev tap
D. dev tun

Answer: D

Explanation:
The "dev tun" directive configures OpenVPN to create a Layer 3 (routed) tunnel interface, which encapsulates and routes IP packets between the client and server. In contrast, "dev tap" creates a Layer 2 (bridged) tunnel interface that carries entire Ethernet frames, allowing broadcast traffic and non-IP protocols to pass through the tunnel, which is useful for certain bridging scenarios but generally has more overhead than a routed tun-based configuration.

NEW QUESTION # 152
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