What is the purpose of strong authentication in information security?

Question

Options

• ATo establish non-repudiation
• BTo guarantee availability
• CTo ensure confidentiality
• DTo verify the identity of users

• A
  2% (1)
• B
  5% (3)
• C
  2% (1)
• D
  92% (54)

Explanation

Authentication answers the question 'Who are you?' - its core purpose is identity verification. Strong authentication (e.g., multi-factor authentication) verifies identity with greater assurance by requiring multiple independent proofs (something you know, have, or are). Non-repudiation (A) is a related but separate concept that prevents denial of an action and is achieved through mechanisms like digital signatures. Availability (B) is ensured through redundancy and uptime controls. Confidentiality (C) is achieved through encryption. Authentication is specifically and fundamentally about confirming who a user is before granting access.

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