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Lpi Linux Professional Institute Security Essentials Exam 020 : 020-100

Exam Code: 020-100

Exam Name: Linux Professional Institute Security Essentials Exam 020

Updated: Sep 13, 2026

Number: 225 Q&As with Testing Engine

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Lpi 020-100 Exam Syllabus Topics:
SectionWeightObjectives
Encryption22%- Data Protection
  • 1. Secure key management
  • 2. Encryption at rest and in transit
- Cryptography Basics
  • 1. Symmetric and asymmetric encryption
  • 2. Hashing, digital signatures, certificates
Network and Service Security22%- Network Security Fundamentals
  • 1. Firewalls, segmentation and filtering
  • 2. Network threats and attacks
- Service and Application Security
  • 1. Web and cloud service security
  • 2. Secure protocols and services
Identity and Privacy23%- Identity and Access Management
  • 1. Password policies and MFA
  • 2. Authentication and authorization
- Privacy and Data Protection
  • 1. Data privacy principles and regulations
  • 2. Personal data protection and identity management
Security Concepts13%- Goals, Roles and Actors
  • 1. Threat actors, roles and responsibilities
  • 2. CIA triad, non-repudiation
- Risk Assessment and Management
  • 1. Vulnerabilities, threats and risks
  • 2. CVE, zero-day, penetration testing
Node, Device and Storage Security20%- Storage and Data Security
  • 1. Secure storage devices and media
  • 2. Data sanitization and disposal
- Endpoint Security
  • 1. Secure configuration and hardening
  • 2. Patch management and updates
Lpi Linux Professional Institute Security Essentials Exam 020 Sample Questions:

Question #1
What is the name of the cyberattack that disrupts network traffic by sending excessive traffic or requests?
Response:

A. DDoS
B. Buffer Overflow
C. Privilege Escalation
D. SQL Injection


Question #2
Which of the following encryption methods is an example of symmetric encryption?
Response:

A. MD5
B. AES (Advanced Encryption Standard)
C. RSA
D. Elliptic Curve Cryptography


Question #3
What is the darknet?
Response:

A. A type of network that is not connected to the internet
B. A type of network that is only accessible through TOR
C. Cloud Storage
D. A type of network that is used for illegal activities


Question #4
You want to access a website that is blocked in your country. Which of the following solutions would be the most appropriate for accessing the website?
Response:

A. Using an unencrypted public Wi-Fi network
B. Network-attached storage
C. Clearing your browser,s cache
D. A public VPN provider


Question #5
What is transfer encryption?
Response:

A. A method for compressing data during transmission
B. A type of encryption that protects data as it is being transferred between devices
C. A type of encryption that protects data within a single device
D. A type of encryption that protects data at rest


Solutions:

Question #1
Correct Answer: A
Question #2
Correct Answer: B
Question #3
Correct Answer: B
Question #4
Correct Answer: D
Question #5
Correct Answer: B

Related Certifications
LPIC Level3
Linux Essentials
LPI Linux Essentials
LPIC-3
LPI Certification
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