VPN
A VPN creates an encrypted tunnel between networks or a client and a network.
Updated: 2026-03-05
Definition
A VPN (Virtual Private Network) encrypts traffic over an untrusted network, often the internet.
Common types include site-to-site VPNs and remote access VPNs.
Key points
- Encrypts traffic in transit
- Site-to-site vs remote access
- Needs strong authentication and key management
Common mistakes
- Assuming VPN replaces segmentation or access controls.
- Weak VPN auth leading to account compromise.
Related exams
CompTIA Network+ (N10-009)
Free Network+ N10-009 mini test. Continue in the app for offline packs and detailed explanations.
CompTIA Security+ (SY0-701)
Free Security+ SY0-701 mini test. Continue in the app for offline packs and detailed explanations.
AWS Certified Solutions Architect – Associate (SAA-C03)
Free SAA-C03 mini test. Continue in the app for offline packs and detailed explanations.
Microsoft Azure Fundamentals (AZ-900)
Free AZ-900 mini test. Continue in the app for offline packs and detailed explanations.
Related terms
Want to practice this in exam-style questions?
Use the mini tests on each exam page, then continue in the app for offline packs and detailed explanations.
Go to exams