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

  • Exam Code: 020-100
  • Exam Name: Linux Professional Institute Security Essentials Exam 020
  • Updated: Aug 14, 2026
  • Q & A: 225 Questions and Answers

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Lpi 020-100 Exam Syllabus Topics:

SectionObjectives
Cryptography Basics- Hashing and Integrity
- Encryption and Decryption Concepts
Security Fundamentals- Threats and Vulnerabilities
- Core Security Concepts
Access Control and Authentication- Authentication Methods
- User and Permission Management
Operational Security- Logging and Monitoring
- System Updates and Patching
Network Security Basics- Firewalls Fundamentals
- Secure Network Protocols
Linux System Security- Basic System Hardening
- File Permissions and Ownership

Lpi Linux Professional Institute Security Essentials Exam 020 Sample Questions:

1. What is a password manager?
Response:

A) A tool used to bypass authentication
B) A tool used to create weak passwords
C) A tool used to decrypt passwords
D) A tool used to securely store and generate passwords


2. Which of the following is a type of security vulnerability that is not yet known to the software vendor or cybersecurity community?
Response:

A) Zero-day vulnerability
B) Known vulnerability
C) Legacy vulnerability
D) Hardware vulnerability


3. Which of the following is a type of local protective software?
Response:

A) Virtual private networks (VPNs)
B) Endpoint firewalls
C) Intrusion detection systems (IDS)
D) Application software


4. You receive an email from an unknown sender claiming to be from your bank. The email includes a link to a website where you are asked to enter your bank account login information. What type of attack is this?
Response:

A) Social engineering
B) Phishing
C) Scareware
D) Email spam


5. Which of the following is a nonprofit organization that provides free digital certificates?
Response:

A) Digital signature
B) Let,s Encrypt
C) Trusted Root-CA
D) Public Key Infrastructure (PKI)


Solutions:

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

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