Which authentication protocol is used in Aruba VPN deployments for secure user authentication?

Question

Options

• AEAP-TLS
• BWEP
• CPPTP
• DARP

• A
  90% (27)
• C
  7% (2)
• D
  3% (1)

Explanation

EAP-TLS (Extensible Authentication Protocol - Transport Layer Security) is the correct answer because it provides mutual certificate-based authentication, making it the industry standard for secure VPN and wireless deployments in enterprise environments like Aruba. It eliminates password vulnerabilities by using digital certificates on both the client and server side.

The distractors are wrong for distinct reasons:

• WEP is a deprecated wireless encryption protocol, not a VPN authentication protocol, and was broken decades ago.
• PPTP is an outdated tunneling protocol with known security weaknesses - it handles encapsulation, not user authentication.
• ARP (Address Resolution Protocol) maps IP addresses to MAC addresses at Layer 2 and has nothing to do with authentication.

Memory tip: Think "EAP-TLS = Enterprise Authentication Power with Two-sided (mutual) certs" - if a question mentions secure enterprise VPN or 802.1X, EAP-TLS is almost always the answer.

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