Which of the following centralized access control mechanisms is the least appropriate for mobile workers accessing the corporate network over analog lines?

The correct answer is B. Call-back. Call-back allows for a distant user connecting into a system to be called back at a number already listed in a database of trusted users. The disadvantage of this system is that the user must be at a fixed location whose phone number is known to the authentication server. Being…

Submitted by diego_uy· Apr 18, 2026Access Controls

Question

Which of the following centralized access control mechanisms is the least appropriate for mobile workers accessing the corporate network over analog lines?

Options

ATACACS
BCall-back
CCHAP
DRADIUS

How the community answered

(35 responses)

A
9% (3)
B
86% (30)
C
3% (1)
D
3% (1)

Explanation

Call-back allows for a distant user connecting into a system to be called back at a number already listed in a database of trusted users. The disadvantage of this system is that the user must be at a fixed location whose phone number is known to the authentication server. Being mobile workers, users are accessing the system from multiple locations, making call-back inappropriate

Topics

#Access Control#Remote Authentication#Mobile Security#Dial-up Networking

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