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GSLC · Question #198

You work as a Network Administrator for PassGuide Inc. You have been assigned a task to provide the right authentications to users. Which method that uses a KDC will you use to accomplish the task?

The correct answer is D. Kerberos. Kerberos is the authentication protocol that uses a Key Distribution Center (KDC) to issue tickets and verify identity on a network without transmitting passwords.

Security Architecture & Engineering

Question

You work as a Network Administrator for PassGuide Inc. You have been assigned a task to provide the right authentications to users. Which method that uses a KDC will you use to accomplish the task?

Options

  • ABiometrics
  • BBasic authentication
  • CDigest authentication
  • DKerberos

How the community answered

(33 responses)
  • A
    3% (1)
  • C
    6% (2)
  • D
    91% (30)

Why each option

Kerberos is the authentication protocol that uses a Key Distribution Center (KDC) to issue tickets and verify identity on a network without transmitting passwords.

ABiometrics

Biometrics authenticates users via physical traits such as fingerprints or iris scans and does not involve a KDC, tickets, or centralized key management infrastructure.

BBasic authentication

Basic authentication encodes credentials in Base64 and sends them in an HTTP header; it has no concept of a KDC, session tickets, or symmetric key exchange.

CDigest authentication

Digest authentication is an HTTP challenge-response mechanism that hashes credentials before transmission but does not involve a KDC or issue time-limited tickets.

DKerberosCorrect

Kerberos is a network authentication protocol built around a trusted third party called the Key Distribution Center (KDC), which consists of the Authentication Server and the Ticket Granting Server. When a user logs in, the KDC issues encrypted, time-limited tickets that the user presents to services to prove identity, eliminating the need to send credentials across the network.

Concept tested: Kerberos authentication using Key Distribution Center (KDC)

Source: https://learn.microsoft.com/en-us/windows-server/security/kerberos/kerberos-authentication-overview

Topics

#Kerberos#KDC#authentication protocols#identity management

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