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Lpi 303-300 Exam Syllabus Topics:

SectionWeightObjectives
Threats and Vulnerability Assessment3%- Threat Analysis
  • 1. Application threats
  • 2. Network threats
  • 3. Credential and confidentiality threats
  • 4. Host-based threats
- Vulnerability Assessment
  • 1. Risk identification
  • 2. OpenVAS
  • 3. Security scanning
Host Security9%- Resource Control
  • 1. Process resource management
  • 2. ulimits
  • 3. cgroups
- Host Hardening
  • 1. Secure boot process
  • 2. Service hardening
  • 3. Kernel runtime protection
- Host Intrusion Detection
  • 1. Malware detection
  • 2. Linux Audit system
  • 3. AIDE integrity checking
  • 4. Rootkit detection tools
Network Security12%- Network Hardening
  • 1. TCP wrappers and service restrictions
  • 2. Secure network services
- Packet Filtering
  • 1. NAT and connection tracking
  • 2. IP sets
  • 3. nftables awareness
  • 4. iptables and ip6tables
- Network Intrusion Detection
  • 1. Wireshark
  • 2. Kismet
  • 3. tcpdump
  • 4. Snort
- Virtual Private Networks
  • 1. IPsec and strongSwan
  • 2. WireGuard
  • 3. OpenVPN
Access Control8%- Authentication and Authorization
  • 1. Centralized authentication
  • 2. Multi-factor authentication
  • 3. PAM
- Mandatory Access Control
  • 1. SELinux management
  • 2. Policy enforcement
  • 3. AppArmor configuration
- Discretionary Access Control
  • 1. Extended attributes
  • 2. File permissions
  • 3. POSIX ACLs
Cryptography8%- Data Encryption
  • 1. Secure data transmission
  • 2. Use LUKS and dm-crypt
  • 3. Encrypt files and storage devices
- OpenPGP
  • 1. Sign and encrypt data
  • 2. Manage GnuPG keys
  • 3. Web of trust concepts
- X.509 Certificates and Public Key Infrastructures
  • 1. Create and manage certificates
  • 2. Manage certificate authorities
  • 3. Certificate revocation and validation

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q139-Q144):

NEW QUESTION # 139
Which option in an Apache HTTPD configuration file enables OCSP stapling?
(Specify ONLY the option name without any values or parameters.)
Solution: httpd-ssl.conf
Determine whether the given solution is correct?

Answer: B


NEW QUESTION # 140
Which command is used to generate a new GnuPG key pair interactively?

Answer: C

Explanation:
The command "gpg --gen-key" (or the more configurable "gpg --full-gen-key") starts an interactive process that guides the user through generating a new GnuPG key pair, prompting for the key type, key size, expiration date, and user identity information. gpg --export outputs an existing public key for sharing, gpg --encrypt encrypts data using a recipient's public key, and gpg --list- keys displays the keys already present in the local keyring rather than generating a new one.


NEW QUESTION # 141
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?

Answer: B

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 # 142
Which command included in the Linux Audit system provides searching and filtering of the audit log?
(Specify ONLY the command without any path or parameters.)
Solution: ausearch
Determine whether the given solution is correct?

Answer: A


NEW QUESTION # 143
What is an asymmetric key?

Answer: C


NEW QUESTION # 144
......

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