Level 4 — Standard — VPN Knowledge Test

1

Which statement best compares WireGuard and OpenVPN?

WireGuard uses a smaller codebase and newer cryptography than OpenVPN. OpenVPN is faster than WireGuard on all devices and connections. WireGuard has been audited for longer and is more battle-tested. OpenVPN cannot encrypt UDP traffic, only TCP.

2

Why is IKEv2 particularly suited for mobile devices?

It requires less battery power than other VPN protocols. It can quickly reconnect when switching between networks like WiFi and 4G. It does not require authentication after the initial connection. It does not support encryption, reducing processing overhead.

3

What is a VPN protocol in general terms?

A set of rules defining how data is encrypted, authenticated, and routed through a VPN tunnel. A single encryption algorithm used to scramble all internet traffic. A list of IP addresses that are blocked by the VPN provider. A method of changing your device's hardware address to appear anonymous.

4

How does a VPN help a user appear to bypass geo-restrictions?

It changes the user's IP address to one in the desired country. It removes the user's device from DNS registries globally. It physically relocates the user's internet packets across borders. It spoofs the user's HTTPS certificate to match the target region.

5

Why do some streaming services block or restrict VPN usage?

They detect VPN IP addresses and enforce licensing restrictions by region. VPNs automatically degrade video quality below legal standards. Streaming services are required by law to ban all encrypted traffic. VPNs prevent the streaming service from collecting any user analytics.

6

What is the key difference between a VPN and a proxy?

A VPN encrypts all traffic and operates at the OS level; a proxy typically handles application-level traffic without encryption. A proxy is faster than a VPN because it does not use encryption. A VPN only works on mobile devices, while proxies work on all devices. A proxy encrypts DNS queries better than a VPN does.

7

What is the main difference between a VPN and Tor?

A VPN routes traffic through one provider's server; Tor routes it through multiple volunteer-operated nodes for stronger anonymity. Tor is faster than a VPN and uses military-grade encryption. A VPN works on all applications; Tor only works in the Tor Browser. Tor encrypts traffic while VPNs do not encrypt at all.

8

What does jurisdiction mean in the context of a VPN provider?

The country or region where the VPN provider is legally based and subject to that country's laws and data retention requirements. The list of countries where the VPN provider's servers are physically located. The encryption method the provider uses to protect user data. The number of simultaneous connections a user can have at once.

9

What is a security risk of using a VPN that does not encrypt DNS queries?

Unencrypted DNS queries reveal browsing history to ISPs or other observers despite the VPN. Unencrypted DNS causes the VPN tunnel to disconnect randomly. Unencrypted DNS prevents the VPN from routing traffic through multiple countries. Unencrypted DNS makes HTTPS connections vulnerable to man-in-the-middle attacks.

10

What does split tunneling do and why might a user enable it?

It allows users to route some traffic through the VPN and other traffic directly, useful for local services or performance. It splits the VPN connection between two servers to double encryption strength. It automatically switches between multiple VPN protocols based on network conditions. It separates a user's traffic into ipv4 and ipv6 for faster speeds.