Systems Security Certified Practitioner (SSCP) — Question 41

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

Answer options

• A. TACACS
• B. Call-back
• C. CHAP
• D. RADIUS

Correct answer: B

Explanation

The correct answer is B, Call-back, as it requires the system to initiate a call back to the user, which can be problematic over analog lines due to potential delays and connection issues. TACACS, CHAP, and RADIUS are all more appropriate for validating access without the need for a second call, making them better suited for mobile workers using analog connections.