Lpi 020-100 real exam prep : Linux Professional Institute Security Essentials Exam 020

  • Exam Code: 020-100
  • Exam Name: Linux Professional Institute Security Essentials Exam 020
  • Updated: Aug 16, 2026
  • Q&As: 225 Questions and Answers

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Lpi 020-100 Exam Syllabus Topics:

SectionObjectives
Topic 1: Linux System Security- Basic System Hardening
- File Permissions and Ownership
Topic 2: Operational Security- Logging and Monitoring
- System Updates and Patching
Topic 3: Access Control and Authentication- User and Permission Management
- Authentication Methods
Topic 4: Security Fundamentals- Core Security Concepts
- Threats and Vulnerabilities
Topic 5: Cryptography Basics- Encryption and Decryption Concepts
- Hashing and Integrity
Topic 6: Network Security Basics- Firewalls Fundamentals
- Secure Network Protocols

Lpi Linux Professional Institute Security Essentials Exam 020 Sample Questions:

1. Which of the following is a common source for security incident information and guidance?
Response:

A) Computer Emergency Response Team (CERT)
B) Security incident response plan
C) IT forensics report
D) Risk assessment report


2. Which of the following is the role of OpenPGP key servers?
Response:

A) OpenPGP key servers provide antivirus protection for email communications.
B) They allow users to store and retrieve public keys associated with an email address.
C) OpenPGP key servers manage email communications.
D) OpenPGP key servers are only used with Mozilla Thunderbird.


3. What is a type of malware that records keystrokes?
Response:

A) Remote Access Trojan (RAT)
B) Ransomware
C) Keylogger
D) Virus Scanner


4. Which of the following is a function of a Certificate Authority (CA)?
Response:

A) To encrypt data transmitted between two parties.
B) To issue and sign digital certificates.
C) To verify the authenticity of digital signatures.
D) To establish a shared secret key between two parties.


5. Which of the following types of encryption is typically used to secure data in transit only?
Response:

A) Transport encryption
B) Firewall
C) Intrusion Detection System (IDS)
D) End-to-end encryption


Solutions:

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

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