Certified Ethical Hacker (CEH v11) — Question 139

Steve, a scientist who works in a governmental security agency, developed a technological solution to identify people based on walking patterns and implemented this approach to a physical control access.
A camera captures people walking and identifies the individuals using Steve's approach. After that, people must approximate their RFID badges. Both the identifications are required to open the door. In this case, we can say:

Answer options

• A. Although the approach has two phases, it actually implements just one authentication factor
• B. The solution implements the two authentication factors: physical object and physical characteristic
• C. The solution will have a high level of false positives
• D. Biological motion cannot be used to identify people

Correct answer: B

Explanation

The correct answer is B because the solution combines two forms of authentication: the RFID badge (a physical object) and the walking pattern recognition (a physical characteristic). Option A is incorrect because it misrepresents the two-factor authentication. Option C is not necessarily true without specific context regarding accuracy, and option D is false as biological motion can indeed be used for identification.