Certified Information Systems Auditor (CISA) — Question 1089

Which of the following technologies has the SMALLEST maximum range for data transmission between devices?

Answer options

• A. Wi-Fi
• B. Bluetooth
• C. Long-term evolution (LTE)
• D. Near-field communication (NFC)

Correct answer: D

Explanation

The correct answer is D, Near-field communication (NFC), which is designed for very short-range communication, typically only a few centimeters. In contrast, Wi-Fi, Bluetooth, and LTE have significantly larger ranges, making them suitable for longer distance data transmission.