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Lpi 303-300 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Host Security	9%	- Host Intrusion Detection 1. Malware detection 2. AIDE integrity checking 3. Rootkit detection tools 4. Linux Audit system - Resource Control 1. Process resource management 2. ulimits 3. cgroups - Host Hardening 1. Secure boot process 2. Service hardening 3. Kernel runtime protection
Topic 2: Network Security	12%	- Virtual Private Networks 1. IPsec and strongSwan 2. OpenVPN 3. WireGuard - Network Hardening 1. Secure network services 2. TCP wrappers and service restrictions - Packet Filtering 1. iptables and ip6tables 2. nftables awareness 3. IP sets 4. NAT and connection tracking - Network Intrusion Detection 1. Kismet 2. Wireshark 3. tcpdump 4. Snort
Topic 3: Threats and Vulnerability Assessment	3%	- Threat Analysis 1. Application threats 2. Credential and confidentiality threats 3. Host-based threats 4. Network threats - Vulnerability Assessment 1. OpenVAS 2. Security scanning 3. Risk identification
Topic 4: Access Control	8%	- Authentication and Authorization 1. Multi-factor authentication 2. Centralized authentication 3. PAM - Mandatory Access Control 1. AppArmor configuration 2. Policy enforcement 3. SELinux management - Discretionary Access Control 1. Extended attributes 2. POSIX ACLs 3. File permissions
Topic 5: Cryptography	8%	- X.509 Certificates and Public Key Infrastructures 1. Create and manage certificates 2. Certificate revocation and validation 3. Manage certificate authorities - Data Encryption 1. Use LUKS and dm-crypt 2. Encrypt files and storage devices 3. Secure data transmission - OpenPGP 1. Sign and encrypt data 2. Web of trust concepts 3. Manage GnuPG keys

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q125-Q130):

NEW QUESTION # 125
What is privilege escalation?

A. An attack that aims to steal sensitive information
B. An attack that exploits a vulnerability to gain elevated privileges
C. An attack that targets a specific user or organization
D. An attack that floods a network or server with traffic to make it unavailable

Answer: B

NEW QUESTION # 126
What is a DoS attack?

A. An attack that aims to steal sensitive information
B. An attack that exploits a vulnerability in software
C. An attack that floods a network or server with traffic to make it unavailable
D. An attack that targets a specific user or organization

Answer: C

NEW QUESTION # 127
Which command is used to create an encrypted LUKS-formatted block device?

A. mkfs.luks /dev/sdX
B. cryptsetup open /dev/sdX
C. cryptsetup luksFormat /dev/sdX
D. dm-crypt --format /dev/sdX

Answer: C

Explanation:
The command "cryptsetup luksFormat /dev/sdX" initializes a block device with the LUKS (Linux Unified Key Setup) header and format, prompting for a passphrase that will be used to protect the master encryption key. Once formatted, the device must be unlocked using "cryptsetup open" (or
"luksOpen"), which creates a mapped device-mapper device that can then be formatted with a standard filesystem and mounted. There is no standard "mkfs.luks" command, since LUKS operates below the filesystem layer.

NEW QUESTION # 128
What is Cryptography?

A. The art of sending public messages
B. The art of decoding messages
C. The art of sending secret messages
D. The art of sending anonymous messages

Answer: C

NEW QUESTION # 129
Which of the following statements are valid wireshark capture filters? (Choose TWO correct answers.)

A. tcp portrange 10000-15000
B. portrange 10000/tcp-15000/tcp
C. port range 10000:tcp-15000:tcp
D. port-range tcp 10000-15000
E. portrange 10000-15000 and tcp

Answer: A,E

NEW QUESTION # 130
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