Which of the following is implemented through scripts or smart agents that replays the users multiple log-ins against authentication servers to verify a user's identity which permit access to system…

Question

Options

• ASingle Sign-On
• BDynamic Sign-On
• CSmart cards
• DKerberos

• A
  92% (22)
• C
  4% (1)
• D
  4% (1)

Explanation

Single Sign-On (SSO) works by authenticating a user once and then using scripts or smart agents to automatically replay (supply) that user's credentials against multiple downstream authentication servers - granting seamless access to various system services without repeated manual logins. This agent-based credential replay is a defining characteristic of how SSO implementations operate under the hood.

Why the distractors are wrong:

• B. Dynamic Sign-On is not a recognized authentication standard or protocol - it's a fabricated term used as a distractor.
• C. Smart cards are physical hardware tokens that store cryptographic credentials; they don't involve scripts or agents replaying logins across servers.
• D. Kerberos is a ticket-based authentication protocol that avoids replaying passwords entirely - it issues time-limited tickets via a Key Distribution Center (KDC), which is fundamentally different from credential replay.

Memory tip: Think of SSO as having a personal agent who memorizes your password and types it in for you everywhere - the agent replays your login so you only had to sign in once. Kerberos, by contrast, gives you a ticket (like a VIP wristband), so no password replay is needed at all.

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