GSEC · Question #391
You work as a Network Administrator for Tech Perfect Inc. The company has a Linux-based network. You have configured a VPN server for remote users to connect to the company's network. Which of the…
The correct answer is C. 3DES. Linux-based VPN solutions (such as IPSec/L2TP) use 3DES (Triple DES) as their symmetric encryption algorithm to secure the data tunnel. 3DES applies the DES cipher three times to each data block, significantly strengthening the original DES. The other options are not encryption…
Question
You work as a Network Administrator for Tech Perfect Inc. The company has a Linux-based network. You have configured a VPN server for remote users to connect to the company's network. Which of the following encryption types will Linux use?
Options
- AMSCHAP
- BRC2
- C3DES
- DCHAP
How the community answered
(33 responses)- A3% (1)
- B6% (2)
- C79% (26)
- D12% (4)
Explanation
Linux-based VPN solutions (such as IPSec/L2TP) use 3DES (Triple DES) as their symmetric encryption algorithm to secure the data tunnel. 3DES applies the DES cipher three times to each data block, significantly strengthening the original DES. The other options are not encryption algorithms used for this purpose: MSCHAP (Microsoft Challenge Handshake Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol) are authentication protocols that verify identity but do not encrypt data, and RC2 is a legacy block cipher that is not the standard choice for Linux VPN implementations.
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