CompTIA Network+ (N10-007) — Question 143

A bookstore uses a Faraday cage to comply with credit card regulations. Customers report that their cellular phones have no signal when they are in the bookstore. Which of the following is the MOST likely cause?

Answer options

• A. The Faraday cage is creating interference within the bookstore.
• B. The Faraday cage prevents access by redirecting signals.
• C. The Faraday cage is creating latency on the cellular network.
• D. The Faraday cage is creating attenuation of the cellular network.

Correct answer: B

Explanation

The correct answer is B because a Faraday cage is designed to block electromagnetic fields, thereby preventing cellular signals from entering or leaving the area. Options A and C are incorrect as they misinterpret the function of the Faraday cage, while D incorrectly suggests that the cage would weaken the signal rather than block it altogether.