XK0-005 · Question #271
XK0-005 Question #271: Real Exam Question with Answer & Explanation
The correct answer is A: IPSec. IPSec and SSL/TLS are the most common protocols used to secure VPN connections, providing encryption and authentication for data transmitted over the public internet. These protocols establish secure tunnels to protect communications.
Question
A Linux user uses a VPN to securely access the company's systems from a laptop. Which of the following protocols are MOST likely used to secure the VPN connection? (Choose two.)
Options
- AIPSec
- BHTTP
- CSFTP
- DVNC
- ESSL/TLS
- FSELinux
Explanation
IPSec and SSL/TLS are the most common protocols used to secure VPN connections, providing encryption and authentication for data transmitted over the public internet. These protocols establish secure tunnels to protect communications.
Common mistakes.
- B. HTTP (Hypertext Transfer Protocol) is an application layer protocol for transmitting hypermedia documents, primarily used for web browsing, and does not provide VPN security.
- C. SFTP (SSH File Transfer Protocol) is a secure file transfer protocol that operates over an SSH connection, specifically for transferring files, not for creating a VPN tunnel.
- D. VNC (Virtual Network Computing) is a graphical desktop sharing system that allows remote control of a computer, not a protocol for securing a VPN tunnel itself.
- F. SELinux (Security-Enhanced Linux) is a security architecture for Linux operating systems that provides mandatory access control, but it is not a networking protocol used for VPN connections.
Concept tested. VPN security protocols (IPSec, SSL/TLS)
Reference. https://en.wikipedia.org/wiki/Virtual_private_network#Security
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