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Lpi 303-300 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Network Security	12%	- Virtual Private Networks 1. IPsec and strongSwan 2. WireGuard 3. OpenVPN - Network Hardening 1. Secure network services 2. TCP wrappers and service restrictions - Network Intrusion Detection 1. Kismet 2. Snort 3. tcpdump 4. Wireshark - Packet Filtering 1. IP sets 2. iptables and ip6tables 3. nftables awareness 4. NAT and connection tracking
Topic 2: 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. Manage GnuPG keys 3. Web of trust concepts
Topic 3: Access Control	8%	- Discretionary Access Control 1. File permissions 2. Extended attributes 3. POSIX ACLs - Mandatory Access Control 1. AppArmor configuration 2. SELinux management 3. Policy enforcement - Authentication and Authorization 1. Multi-factor authentication 2. Centralized authentication 3. PAM
Topic 4: Host Security	9%	- Resource Control 1. ulimits 2. Process resource management 3. cgroups - Host Hardening 1. Service hardening 2. Kernel runtime protection 3. Secure boot process - Host Intrusion Detection 1. AIDE integrity checking 2. Malware detection 3. Linux Audit system 4. Rootkit detection tools
Topic 5: Threats and Vulnerability Assessment	3%	- Threat Analysis 1. Application threats 2. Host-based threats 3. Network threats 4. Credential and confidentiality threats - Vulnerability Assessment 1. OpenVAS 2. Security scanning 3. Risk identification

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q106-Q111):

NEW QUESTION # 106
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 newly created files
B. The maximum size of written files
C. The maximum number of user processes
D. The maximum number of open file descriptors
E. The maximum number of environment variables

Answer: B,C,D

NEW QUESTION # 107
What effect does the following command have on TCP packets?
iptables- A INPUT d 10.142.232.1 p tcp --dport 20:21 j ACCEPT

A. Accept all TCP traffic on port 20 and 21 for the IP address 10.142.232.1
B. Drop all TCP traffic coming from 10.142.232.1 destined for port 20 or 21.
C. Accept only TCP traffic from 10.142.232.1 destined for port 20 or 21.
D. Forward all TCP traffic not on port 20 or 21 to the IP address 10.142.232.1

Answer: A

NEW QUESTION # 108
Which command displays the capabilities currently assigned to a specific binary file?

A. capsh --print
B. setcap /path/to/binary
C. getcap /path/to/binary
D. chmod +cap /path/to/binary

Answer: C

Explanation:
The getcap command displays any file capabilities that have been assigned to a specific binary using setcap. This allows an administrator to audit which executables on a system have been granted elevated capabilities beyond the standard permission model. setcap, by contrast, is used to assign capabilities to a file, while capsh --print displays the capabilities of the current running shell process rather than those statically attached to a specific binary file.

NEW QUESTION # 109
What is the purpose of NSEC3 in DNSSEC?

A. To prevent zone enumeration
B. To authenticate a DNS server
C. To sign a DNS zone
D. To provide information about DNSSEC key signing keys

Answer: A

NEW QUESTION # 110
What is a ciphertext?

A. The algorithm used to encrypt the message
B. The original message before encryption
C. The key used to encrypt the message
D. The encrypted message

Answer: D

NEW QUESTION # 111
......

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