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

020-100 testking pdf
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Exam Code: 020-100

Exam Name: Linux Professional Institute Security Essentials Exam 020

Updated: Aug 12, 2026

Q & A: 225 Questions and Answers

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Lpi 020-100 Exam Syllabus Topics:

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

Lpi Linux Professional Institute Security Essentials Exam 020 Sample Questions:

1. What is a major security concern when installing mobile applications from unknown sources?
Response:

A) Malware infection
B) Limited network connectivity
C) Incompatible hardware components
D) Reduced storage capacity


2. Which factor of authentication is commonly achieved by using token devices like key fobs or smart cards?
Response:

A) Action factor
B) Ownership factor
C) Knowledge factor
D) Characteristic factor


3. You are using a public Wi-Fi network at a coffee shop to access sensitive information. What security measure should you take to protect your information?
Response:

A) Use a weak password for your accounts
B) Share your login credentials with others using the same Wi-Fi network
C) Use a virtual private network (VPN) to encrypt your data
D) Leave your computer unattended while you step away


4. Which of the following is a plain text protocol?
Response:

A) HTTPS
B) HTTP
C) TLS
D) SSL


5. How are passwords typically stored in online services?
Response:

A) In plain text
B) Using reversible encryption
C) As encoded base64 strings
D) Using password hashing and salting


Solutions:

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

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