SSCP · Question #893
Which one of the following authentication mechanisms creates a problem for mobile users?
The correct answer is A. Mechanisms based on IP addresses. IP address-based authentication assumes a user's IP address is fixed and known in advance. Mobile users frequently change their IP address as they roam between networks (cellular, Wi-Fi hotspots, VPNs), making IP-based authentication impractical and unreliable for them…
Question
Which one of the following authentication mechanisms creates a problem for mobile users?
Options
- AMechanisms based on IP addresses
- BMechanism with reusable passwords
- Cone-time password mechanism.
- Dchallenge response mechanism.
How the community answered
(61 responses)- A93% (57)
- B3% (2)
- C2% (1)
- D2% (1)
Explanation
IP address-based authentication assumes a user's IP address is fixed and known in advance. Mobile users frequently change their IP address as they roam between networks (cellular, Wi-Fi hotspots, VPNs), making IP-based authentication impractical and unreliable for them. Reusable passwords, one-time passwords, and challenge-response mechanisms all authenticate based on credentials or shared secrets that travel with the user, so they function regardless of the user's current network location.
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