312-50V10 · Question #319
Smart cards use which protocol to transfer the certificate in a secure manner?
The correct answer is A. Extensible Authentication Protocol (EAP). Smart cards use EAP to securely transport certificate credentials during authentication. EAP-TLS is the specific variant that enables mutual certificate-based authentication over wired and wireless networks.
Question
Smart cards use which protocol to transfer the certificate in a secure manner?
Options
- AExtensible Authentication Protocol (EAP)
- BPoint to Point Protocol (PPP)
- CPoint to Point Tunneling Protocol (PPTP)
- DLayer 2 Tunneling Protocol (L2TP)
How the community answered
(29 responses)- A93% (27)
- B3% (1)
- C3% (1)
Why each option
Smart cards use EAP to securely transport certificate credentials during authentication. EAP-TLS is the specific variant that enables mutual certificate-based authentication over wired and wireless networks.
EAP (specifically EAP-TLS) is the standard protocol used to carry smart card certificate credentials during the authentication handshake. It operates above the data link layer and is used in 802.1X environments to perform certificate-based mutual authentication between the client and authentication server. This makes it the correct choice for securely transferring smart card certificates.
PPP is a data link layer encapsulation protocol for serial point-to-point connections and does not define a mechanism for transferring certificates.
PPTP is a VPN tunneling protocol that encapsulates PPP frames over IP networks and plays no role in smart card certificate exchange.
L2TP is a tunneling protocol typically paired with IPSec for VPN use and does not handle smart card certificate transfer.
Concept tested: Smart card authentication using EAP-TLS protocol
Source: https://learn.microsoft.com/en-us/windows/security/identity-protection/smart-cards/smart-card-architecture
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