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Lpi 303-300 Exam Overview:

Certification Vendor:Linux Professional Institute (LPI)
Exam Name:LPIC Exam 303: Security, Version 3.0
Exam Number:303-300
Passing Score:500/800
Exam Duration:90 minutes
Real Exam Qty:60
Exam Format:Fill in the Blank, Multiple Choice
Related Certifications:LPIC-3 Security
Available Languages:Japanese, English
Certificate Validity Period:5 years
Exam Price:$200 USD
Sample Questions: DOWNLOAD DEMO
Exam Way:Pearson VUE Test Center or Online Proctored Exam (OnVUE)
Pre Condition:An active LPIC-2 certification is required to obtain the LPIC-3 Security certification. LPIC-2 and LPIC-3 exams may be taken in any order.
Official Syllabus URL:https://www.lpi.org/our-certifications/exam-303-objectives/

Lpi 303-300 Exam Syllabus Topics:

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

Frequently Asked Questions About Lpi LPIC Exam 303: Security, version 3.0

The Lpi LPIC Exam 303: Security, version 3.0 exam (exam code 303-300) is the official Lpi exam that leads to the LPIC-3 certification, sitting at the Expert level of the Lpi certification track. It is also connected with LPIC-3 Security. If this is the credential you are working toward, the 163 practice questions at Actual4Cert map directly to its objectives.

The Lpi LPIC Exam 303: Security, version 3.0 exam includes 60 questions, and you have 90 minutes to complete them. Divide the time limit by the question count and you get a tight average pace per item, so train yourself to flag time-consuming questions and return to them later instead of getting stuck. Before test day, run at least one full timed session in the Actual4Cert test engine under the same limits — the clock should never surprise you.

The passing score for Lpi LPIC Exam 303: Security, version 3.0 is 500/800, and the official registration fee is $200 USD. A failed attempt means paying that fee in full again, so your preparation budget deserves the same attention as your study plan. A practical rule: book your exam date only after you can finish a Actual4Cert practice test comfortably above the passing score more than once.

According to Lpi, candidates should meet the following before registering: An active LPIC-2 certification is required to obtain the LPIC-3 Security certification. LPIC-2 and LPIC-3 exams may be taken in any order.. Requirements can change, so confirm the latest details on the official exam page before you register.

Yes. A free PDF demo of the 303-300 practice questions is available to download, so you can judge the format and quality before paying anything. Every purchase also includes 365 days of free updates, and if your product expires you can extend the update service at a 50% discount.

Your order is covered by a conditional 100% money-back guarantee: if you take the corresponding exam within 60 days of purchase and do not pass, you may apply for a full refund. Exams taken within 3 days of purchase are not eligible, nor are free materials or expired orders, and the candidate name must match the payer name. To claim, submit a scanned enrollment slip and your official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Prefer to keep studying? You can instead exchange your purchase for two free products of equal value while keeping the update service on your original one. Delivery itself is immediate: your product unlocks for instant download right after payment and a copy is emailed to you within a minute — if nothing arrives within 2 hours, contact our support team. There is no limit on the number of computers you can install it on.

The Lpi LPIC Exam 303: Security, version 3.0 blueprint is divided into 5 major domains, starting with Access Control (8%), Cryptography (8%), and Host Security (9%). The full breakdown, including every subdomain and its weighting, is listed in the Exam Topics section above — review it against your own weak areas before scheduling the exam.

Lpi LPIC Exam 303: Security, version 3.0 Sample Questions:

Question 1

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?

A. namespaces
B. capabilities
C. cgroups
D. seccomp


Question 2

What is privilege escalation?

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


Question 3

Which protocol is commonly used to transmit X.509 certificates?

A. FTPS
B. HTTPS
C. SMTPS
D. LDAP


Question 4

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

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


Question 5

Which command is used to set the owner and group of a file in Linux?

A. chown
B. setfacl
C. chgrp
D. chmod


Solutions:

Question 1
Answer: D
Question 2
Answer: A
Question 3
Answer: D
Question 4
Answer: C,D
Question 5
Answer: A

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