Latest Test 303-300 Simulations - 303-300 Test Discount Voucher

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Lpi 303-300 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Host Security9%- Host Hardening
  • 1. Secure boot process
  • 2. Kernel runtime protection
  • 3. Service hardening
- Resource Control
  • 1. cgroups
  • 2. ulimits
  • 3. Process resource management
- Host Intrusion Detection
  • 1. Rootkit detection tools
  • 2. Linux Audit system
  • 3. Malware detection
  • 4. AIDE integrity checking
Topic 2: Network Security12%- Network Intrusion Detection
  • 1. tcpdump
  • 2. Snort
  • 3. Wireshark
  • 4. Kismet
- Virtual Private Networks
  • 1. OpenVPN
  • 2. IPsec and strongSwan
  • 3. WireGuard
- Network Hardening
  • 1. TCP wrappers and service restrictions
  • 2. Secure network services
- Packet Filtering
  • 1. iptables and ip6tables
  • 2. nftables awareness
  • 3. IP sets
  • 4. NAT and connection tracking
Topic 3: Cryptography8%- Data Encryption
  • 1. Secure data transmission
  • 2. Encrypt files and storage devices
  • 3. Use LUKS and dm-crypt
- X.509 Certificates and Public Key Infrastructures
  • 1. Create and manage certificates
  • 2. Certificate revocation and validation
  • 3. Manage certificate authorities
- OpenPGP
  • 1. Manage GnuPG keys
  • 2. Web of trust concepts
  • 3. Sign and encrypt data
Topic 4: Threats and Vulnerability Assessment3%- Threat Analysis
  • 1. Credential and confidentiality threats
  • 2. Network threats
  • 3. Application threats
  • 4. Host-based threats
- Vulnerability Assessment
  • 1. Risk identification
  • 2. Security scanning
  • 3. OpenVAS
Topic 5: Access Control8%- Mandatory Access Control
  • 1. AppArmor configuration
  • 2. Policy enforcement
  • 3. SELinux management
- Discretionary Access Control
  • 1. File permissions
  • 2. Extended attributes
  • 3. POSIX ACLs
- Authentication and Authorization
  • 1. PAM
  • 2. Centralized authentication
  • 3. Multi-factor authentication

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Lpi 303-300 Test Discount Voucher - Cert 303-300 Guide

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q104-Q109):

NEW QUESTION # 104
Which file defines the default set of resource limits, such as maximum open files or processes, applied to users via PAM?

Answer: C

Explanation:
The /etc/security/limits.conf file, used in conjunction with the pam_limits module, defines soft and hard resource limits for users and groups, such as the maximum number of open file descriptors, maximum number of processes, or maximum CPU time. /etc/login.defs contains more general login and password aging defaults for the shadow password suite, while /etc/sysctl.conf configures kernel parameters system-wide, not per-user PAM-enforced limits.


NEW QUESTION # 105
Which of the following types can be specified within the Linux Audit system? (Choose THREE correct answers.)

Answer: A,B,C


NEW QUESTION # 106
What is the purpose of a Certificate Authority (CA)?

Answer: A


NEW QUESTION # 107
What is a plaintext?

Answer: D


NEW QUESTION # 108
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: 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 # 109
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