FC0-U71 Security Practice Question
Which of the following encryption methods is used to protect data in transit over a public network, such as the internet?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
VPN
A VPN encrypts data traffic over public networks, providing a secure tunnel for data in transit.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Full disk encryption
Why it's wrong here
Full disk encryption protects data at rest on a device, not in transit.
- ✗
File encryption
Why it's wrong here
File encryption protects individual files at rest, not data in transit.
- ✓
VPN
Why this is correct
A VPN encrypts all data transmitted over a public network, securing the entire connection.
- ✗
HTTPS
Why it's wrong here
HTTPS encrypts web traffic between a browser and server, but it is specific to web traffic, not all data in transit.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.