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

020-100

Exam Code: 020-100

Exam Name: Linux Professional Institute Security Essentials Exam 020

Updated: Oct 08, 2026

Q & A: 225 Questions and Answers

020-100 Free Demo download

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Lpi 020-100 Exam Syllabus Topics:

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

Lpi Linux Professional Institute Security Essentials Exam 020 Sample Questions:

Question #1
Which of the following fields in an X.509 certificate identifies the domain name of a website?
Response:

A. Validity
B. subjectAltName
C. Issuer
D. Subject


Question #2
Which of the following backup types only backs up data that has changed since the last backup of any kind?
Response:

A. Incremental backup
B. Full backup
C. Mirror backup
D. Differential backup


Question #3
Which of the following is an example of a wireless network technology commonly used for short-range communication between devices?
Response:

A. LTE
B. Bluetooth
C. Zigbee
D. WiFi


Question #4
What is the main purpose of security questions?
(Choose TWO)
Response:

A. To verify the user,s email address
B. To provide an additional layer of authentication
C. To protect against unauthorized account access
D. To reset forgotten passwords


Question #5
What is a hidden service?
Response:

A. A background process on an operating system
B. A secret feature in a software application
C. A service that is not accessible through the regular internet
D. A type of encryption algorithm


Solutions:

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

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