ISA/IEC 62443 Cybersecurity Fundamentals Specialist — Question 84

What does a demilitarized zone (DMZ) provide in network security?

Answer options

• A. Secure data transfer
• B. Increased bandwidth
• C. Indirect access to the Internet
• D. Simplified security architecture

Correct answer: A

Explanation

The correct answer is A because a DMZ is designed to provide a controlled environment for secure data transfers between external networks and internal systems. Options B and D are incorrect as the DMZ does not inherently increase bandwidth or simplify security architecture; rather, it adds a layer of security. Option C is misleading as the DMZ does not provide indirect access, but rather acts as a buffer zone.